Royal Dux: Dating 150 Years of PorcelainBy

Royal Dux: Dating 150 years of Porcelain

Duxer Porzellanmanufaktur, or Dux Porcelain Manufactory, was started in 1860 by Eduard Eichler in what was then Duchov, Bohemia. The high quality pottery and porcelain figures produced there are now generally referred to by the abbreviated name, "Royal Dux."

Ownership of the business changed frequently over the last 150 years. Bohemia became part of Czechoslovakia which was in turn controlled first by Germany then the Soviet Union. In 1990, even the national name was changed to Czech Republic.

The problem facing collectors is that many original 19th century molds have remained in production throughout the company's 150 year history. With vintage 19th century Royal Dux selling for up to several thousand dollars, modern pieces are often offered, either deliberately or through ignorance, as much older than they really are. In this article, we'll be looking at genuine marks found on authentic Royal Dux as well as typical forged marks you might find in the market.

Original Marks

Royal Dux products can be divided into four broad periods of production generally separated by wars and political upheaval: 1860 to WW I; 1919 to WW II; 1947 to 1990 and from 1990 to the present. From 1860 to WW II, ca. 1939, the company operated under the original name Duxer Porzellanmanufaktur, commonly called Royal Dux. After WW II, around 1946-47, the factory was nationalized by the Soviet Union and renamed Duchosvsky Porcelain. The company returned to private ownership with the collapse of the Soviet Union in 1990. Since 1990, molds and variations of company marks from earlier periods have continued to be used as Royal Dux continues production into the 21st century.

The Famous Pink Triangle

Royal Dux introduced one of the most distinctive marks ever placed on porcelain, a raised triangle of pink clay. All factory-applied pink triangles–whether from the 19th, 20th or 21st century–are made from a separate piece of pink clay. The pink clay is applied to the base of Royal Dux white clay bodies. The two separate pieces are fused together during firing. There is virtually never the slightest seam or gap between the pink clay of the triangle and the white clay of the piece to which the triangle is applied.

Before WW I, pink triangles were generally, but not always, left in a bisque, or unglazed, finish. Most Art Nouveau figures in matte glaze, for example, usually have bisque triangles. After WW I, Art Deco figures entirely glazed in a high gloss occasionally have glazed triangles. Pieces with gloss glazes after 1950, especially after 1980 are more likely to have some glaze on the triangle. Although bisque triangles are the general rule, there is considerable variation over the years.

Factory triangles are all roughly the same size, about one-half inch per side and raised about one-sixteenth inch thick, rarely more than one-eighth inch thick. Size varies slightly because some original triangles were slightly deformed when damp.

Appearing in all genuine factory-applied raised pink triangles, regardless of age, is "Royal Dux Bohemia." That lettering appears around an oval shape in the center of the triangle. A crosshatch, or grid-like pattern, is at the top of the oval. Even though the country of Bohemia disappeared at the end of WW I, Royal Dux Bohemia remains in the mark to this day.

All factory-applied pink triangles, new or old, are generally very high quality. You almost never find a blurred, indistinct or illegible impressions in factory-applied triangles. Virtually all factory-applied triangles have sharp, clear lettering impressed to an equal depth.

E Impressed Triangle, ca. 1860-WW I

Each of the four periods of production can be roughly identified by changes in marks. In the first period, 1860 to WW I, the letter E is impressed in the center of the pink triangle. E represents Eichler, the founder's surname (see line drawing and photo in Figs. 2-3). The letter in the center of triangles changes over the years. It's important to keep in mind that E is the earliest. A convenient way to remember this is by word association: E is for early. The great majority of authentic factory-applied triangles from the first production period are unglazed.

Additional marks from the first period of production include Figs. 4-5-6 which are usually impressed. Any of the marks from the first production period in Figs. 2-6 may appear alone or in various combinations with any other mark.

Made in Czechoslovakia, ca. 1919

Following the end of WW I, Bohemia, the home of Royal Dux, was united with Slovakia and Moravia to form a new nation, Czechoslovakia. This change was reflected in the phrase "Made in Czechoslovakia" which appeared in Royal Dux marks around 1919 (Figs. 7-9). The letter E continued to be impressed in the center of the pink triangle and "Royal Dux Bohemia" impressed around the oval.

Made in Czechoslovakia can appear joined to other Royal Dux marks or can appear separately at a distance from other marks. Typical colors for stamped ink marks include green and a reddish-pink.

D Impressed in Triangle, ca. 1947

At the end of WW II, Russia, then the Soviet Union, continued to occupy east-European countries its troops held when Germany surrendered. This included Czechoslovakia. Russia nationalized almost all Czechoslovakian industries including Royal Dux. Around 1946-47, the factory was renamed Duchcovsky Porcelain after the regional name of Duchov.

The letter E is removed from the center of the pink triangle at this time and replaced by the letter D. Royal Dux Bohemia continues to appear around the oval. The triangle is still a separate piece of pink clay applied to a white clay body. Made in Czechoslovakia again appears in marks sometime in the early 1950s.

Some products made in the early 1950s have an M rather than a D in the pink triangle. Very few of these pieces have been seen in western markets. For all practical purposes, the letter D is the dominant letter in the vast majority of pink triangles since WW II.

Czech Republic is Created, 1990

The collapse of the Soviet Union in the early 1990s ushered in tremendous changes in eastern Europe. Royal Dux returned to private ownership and Czechoslovakia changed its name to Czech Republic. With all these changes, production since 1990 is by far the most difficult to accurately date by marks alone.

The most significant change was in the general policy regarding marks. Rather than going forward with totally new marks, the factory brought back marks used in the past. The letter inside the triangle–in both printed marks and the raised pink mark– continued to be the letter D. Printed marks begin to include not only "Made in Czech Republic" but also "Made in Czechoslovakia" previously used only on pre-WW II pieces. Pieces made since the mid-1990s in original molds and carrying the old-appearing marks can be difficult to separate from 19th and early 20th century originals.

Here are a few general guidelines that will help you identify most 1990s pieces. First, any piece marked with the modern copyright symbol, ©, or modern registered symbol, ® , are from the 1990s. Any piece marked Czech Republic cannot be older than 1990-1991 at most. Pieces with a gold foil label with a letter D in the center are also from the 1990s. Pieces marked Made in Czechoslovakia–made before or after 1990–can in no instance possibly date before 1919 at the earliest. Czechoslovakia was created at the end of WW I, ca. 1918-1919. Any piece with a D impressed in the pink triangle cannot date any earlier than the late 1940s.

However, neither "Made in Czechoslovakia" or a D impressed in the pink triangle, are guarantees of age. Both of those markings have been used in the 1990s and continue to be in use as of 2001. The new vase in Fig. 30, for example, is marked Made in Czechoslovakia but was made in 2001. There is a pink triangle with an impressed D on the frog in Fig. 23.

Generally, pieces with a letter E impressed in a raised pink triangle with no marks other than shape numbers or decorators marks, are still very likely to have been made before 1919. Pink triangles on these pieces are generally bisque. Pieces with E impressed in a raised pink triangle and also marked "Made in Czechoslovakia" impressed, not backstamped, most likely date between the world wars, 1919-1939.

Another, but less objective, test is the quality of the finish. Most matte glazed pieces from before WW II, especially before 1900, are velvety smooth. Surfaces of pieces made after WW II tend to be rougher. This test only works on matte finished pieces, though, and you need to be familiar with originals. Neither is a test for pieces with gloss glazes.

Pieces with a D impressed in a raised pink triangle with "Made in Czechoslovakia" applied as either a transfer or ink stamp, need to be examined very, very carefully. Although "Made in Czechoslovakia" was first used ca. 1919-1939, that same mark is again being applied with decals and stamps on new pieces made since 1990s.

Fakes and Forgeries

Besides separating confusing marks and pieces made at the Royal Dux factory, buyers must also contend with fakes and forgeries.

Some fakes are quite ambitious, going so far as to copy the raised pink triangles. Two new triangles and the pieces on which they appear are shown in Figs. 33-36. Both forgeries have Made in Bohemia and the letter E impressed into raised pink triangles, similar to the genuine Royal Dux triangles used 1860-1918.

There are several clues to help you detect these and most other forged triangles. First, look at the color. All original raised pink triangles are made of pink clay; the pink color is throughout the body of the triangle. The fake triangle in Fig. 33 was made of white clay painted dark pink. No authentic factory-made pink triangles old or new are painted. The triangle in Fig. 33 was cast with the entire vase; it is not made separately and applied.

The forged triangle in Fig. 35 is made of pink clay, but it is very blurred and the letters are almost illegible. The depth to which letters are impressed on most new triangles, including this example, varies greatly. Letters in genuine triangles are impressed to almost exactly the same depth. The figure is made of heavy pottery, not porcelain.

Marks on any piece offered as Royal Dux must be examined very carefully. Even if you believe you can correctly date a piece, you should still request a written receipt that includes the approximate date of production. Nobody can say with any certainty what marks may have been applied to factory-made Royal Dux since the mid-1990s.

1. Courtesy Collector Books, Collectors Guide to European and American Art Pottery, Schwartzman © 1978

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Fig. 1 Two Royal Dux 12″ horses. Both have the same impressed shape number, yet one is about twice as old as the other. In this article we look at the marks found on Royal Dux products.

First Period, ca. 1860-WWI

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Fig. 2 Line drawing of the oldest raised triangle mark. Royal Dux Bohemia appears around an oval with the letter E. The letter impressed in the triangle changes over the years.

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Fig. 3 Close up photo of the earliest raised pink triangle mark. Note that all lettering is impressed. Triangles are made of pink clay.

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Fig. 4

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Fig. 5

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Fig. 6

Figs. 4-6 These are three other marks which may appear with the early raised pink E triangle or may appear alone.

2nd Period, ca. 1919-WWII

Pre-1918 marks with Made In Czechoslovakia added.
Exact appearance and location of marks will vary.

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Fig. 7

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Fig. 8

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Fig. 9

Figs. 7-9 After WW I, Bohemia, home of the Dux factory, was united with Moravia and Slovakia to form the country of Czechoslovakia. Around 1919, "Made in Czechoslovakia" began to be added to Royal Dux marks. Made in Czechoslovakia may appear separately or joined to the pre-1918 marks. The letter E remained in the pink triangle along with Royal Dux Bohemia around the oval.

3rd Period, ca. Late 1947-1990

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Fig. 10

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Fig. 11

Figs. 10-11 The pottery was nationalized by the Soviet Union at the end of WW II. The letter E is removed from the pink triangle and replaced by the letter D. Royal Dux Bohemia continues to appear around the oval. The triangle remains the same color and size.

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Fig. 12 Stamped in black, blue or dark green ink. Triangle with D, Royal Dux Bohemia. "Hand Painted, Made in Czechoslovakia" around triangle. After WW II.

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Fig. 13 Some pieces made in the early 1950s have an M rather than a D in the pink triangles. Very few of the M pieces have ever appeared in western markets.

4th Period, Since 1990

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Fig. 14

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Fig. 15 The registered symbol and Hand Painted Made in Czechoslovakia are black, remainder of mark is blue. The number 1853 below the triangle should not be confused with a date.

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Fig. 16 Raised pink triangle

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Fig. 17 gold foil label
A gold foil label has also been used since the early 1990s. There have been some reports of applying these new labels to genuinely old but originally unmarked pieces of low quality pottery made by manufacturers other than Royal Dux.

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Fig. 18 green backstamp

Figs. 14-18 Marks used since the early 1990s have been very confusing. The letter D once again returns to the center of the pink triangle replacing the M. However, the raised pink triangle is used less frequently. Many marks since 1990 are stamped in ink or applied as transfers under the glaze (Figs. 15, 18). This can include all the words previously impressed in the pink triangles such as Royal Dux Bohemia.

The modern symbols for copyright, ©, and registration, ®, also begin to be used. The new national name Czech Republic, appears in many, but far from all, new marks (Fig. 15). Many new pieces since the late 1990s have also been marked Made in Czechoslovakia (Fig. 18), exactly the same wording as used ca. 1919-1939. Miscellaneous numbers that might be confused with dates may also appear with marks such as 1853 in the mark shown in Fig. 15.

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Fig. 20 Two Royal Dux 12-inch horses from the same mold. Matte glaze, ivory bodies, olive-gold bases. Marked as shown below.

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Fig. 21 Marks on horse at left, above. Raised pink E-triangle and two backstamps of Royal Dux Made in Czechoslovakia; blue-green (A) and pale red (B). Estimated production, ca. 1930s, but may be post-WW II. Stern Photos

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Fig. 22 Horse on right, above, marked with raised pink triangle only. Estimated production, ca. 1890-1915. Stern Photos

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Fig. 23

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Fig. 24

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Fig. 25

Figs. 23-25 Frog paperweight in Fig. 23 is about 3-inches. White glossy glaze trimmed in gold. Retail price in 1995 was $24. Marked with raised pink D-triangle, Fig. 24 and Made in Czech Republic, ® and stamped triangle in Fig. 25. Stamped triangle in blue, Made in Czech Republic in black.

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Fig. 26

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Fig. 27

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Fig. 28

Figs. 26-28 Running deer, about 12-inches long; high gloss glaze, ca. 1990s. Marked on base with raised pink D-triangle in Fig. 27 and Made in Czechoslovakia in black backstamp, Fig. 25.

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Fig. 29

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Fig. 30

Figs. 29-30 Stylized 6-inch monk with lute. White high gloss glaze. Marked with black backstamp D-triangle and Czechoslovakia Fig. 29. Also marked with facsimile signature of an unknown designer. Estimated production ca. 1960s. Stern Photos

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Fig. 31

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Fig. 32

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Fig. 33

Figs. 31-33 New 6½-inch vase made between 2000-2001. White bodied porcelain with transfer floral decoration and gold trim. Green backstamp Royal Dux Made in Czechoslovakia, Fig. 32. Also gold foil label Royal Dux Bohemia, Fig. 33.

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Fig. 34 Forged raised triangle found on vase in Fig. 35. This triangle is made of white clay painted dark pink. The white clay shows through in the lower left part of the triangle. All original pink triangles are made of pink clay with the color throughout the body of the triangle. Old raised pink triangles are never painted.

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Fig. 35 New 16-inch vase with Art Nouveau nude. Marked with forged triangle in Fig. 34. This vase is a crude pottery with vase walls nearly one-half inch thick. Genuine Royal Dux is porcelain, rarely over one-eighth inch thick except for bases of statuary which are made slightly thicker.

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Fig. 36 Forged raised pink triangle above is carefully made of pink clay. The impressed letters this new triangle vary considerably in depth. All letters on genuine triangles are almost always impressed to a uniformly even depth. The pink triangle is a thick, rough-textured slab unlike the thin original pink triangles with a smooth finish.

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Fig. 37 This new piece with forged pink triangle from Fig. 36 is thick and heavy pottery; original Royal Dux is porcelain and rarely over one-eighth inch thick.

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Fig. 38 Various figural pieces offered by Royal Dux as shown in a 1995 catalog page.

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Fig. 39 Covered jars, boxes and figural pieces offered by Royal Dux as shown in a 1995 catalog page.

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Fig. 40 Art Deco period Royal Dux 12-inch dancers with high gloss glaze.