Title
Home Navigation About us Navigation Stein Marks Navigation Logo identification Navigation By Location Navigation By Category Navigation Links / Unidentified marks


(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben
Vienna, and Znaim in Moravia, Austro-Hungarian Empire. Now called Znojmo, Czech Republic.
Kunstthonwaaren-Fabrik / Manufacture of art pottery wares

Karl Rudolf Ditmar: born 3rd May 1818, in Preslau in the state of Brandenburg, died 22nd March, 1895, Znaim, Moravia.
Rudolf and his brother Friedrich relocated to Vienna in 1839, where they traded in oil lamps. On the 5th August 1841, as the Ditmar Brothers, they opened their own metalwork facility manufacturing oil lamps. In the 1850's Rudolf developed the "Viennese Moderateur Lampe", an adjustable oil supply mechanism, which came to dominate world markets. Due to changes in fashion, lamp bodies changed to ceramic from metal due to the infinite number of design possibilities available. Therefore, in 1879, Rudolf open an art pottery factory in Znaim, originally manufacturing lamp bodies in earthenware, however some porcelain has also been seen. Around 1890 they also started producing a range of steins. Rudolf died in 1895. In 1910, the company now called Rudolf Ditmar Erben (heirs) was purchased by the K. u. K. priviligierte Wilhelmsburger Steingut- und Porzellanfabrik and merged with the Brothers Urbach of Teplitz-Turn, (now Teplice-Trnovony, Czech Republic). In 1913, the companies were purchased by Triptis A.G, (The same company that purchased Wicke-Werke in the 1920's). However the Ditmar factory again became independent, when the factory was confiscated by the newly founded state of Czechoslovakia in 1919 and operated as Ditmar-Urbach, under its previous owner, Richard Lichtenstern.  In turn it was again confiscated by the Austrian Government, as part of the Anschluss in 1938, to become Ostmark-Ceramics A.G. and subsequently nationalised in 1945. In 1947 Richard's son Kurt, who had emigrated to the U.S. and changed his name to Conrad H. Lester, took back the company and changed its name to ÖSPAG (Österreichische Sanitär-, Keramik- und Porzellan-Industrie AG). This was eventually taken over in 1967 by the Keramik Holding Laufen, which is now part of the ROCA group. Gebrüder Horn has also ended up in this grouping.

Reference: Ditmar History  Lichtenstern  Porcelain Marks & More  WT-Pempel 




(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 12-8-19-1
R. Ditmar, Vienna & Znaim, Paraffin / Kerosine lamp,
post 1879.


(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 12-8-19-2
Ink stamp on the base of the
R. Ditmar, Vienna & Znaim, Paraffin / Kerosine lamp.

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 13-6-30-1
Ceramic pot or ornament stand, dated c.1890. 
It is moulded in three separate pieces and is 
approx. 32" or 82cms tall
.

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 13-6-30-2
Impressed base mark on pot or ornament stand above.

 
Rudolf Ditmar 4
Mould #20027, dated c.1892

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 12-1-3-7
Internal capacity mark on mould #20124,
dated c.1892.


(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 12-4-29-1
Impressed maker's mark on mould #1955,
dated c.1890's.


(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 04
Ink stamp 1879 - 1910. R.D.Z.= Rudolf Ditmar Znaim
Impressed stamp 1879 - 1910. R.D.Z. on wheel rim with impressed spokes on the interior.

Rudolf Ditmar 2
Ink stamp 1879 - 1910 after which time the factory was purchased by K. u. K. priviligierte Wilhelmsburger Steingut- und Porzellanfabrik.

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 11-9-7-1
Example of capacity mark, painted inside the rim.

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 12-8-19-3a
Mark from the base of a porcelain lamp.

Rudolf Ditmar 3
Mould number impressed #1584.
Ink stamp 1879 - 1910. R.D.Z.= Rudolf Ditmar Znaim. 




(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 13-6-18-2
Brass "Sonnenbrenner" Sun Burner lamp, 
probably dated between 1841 and 1879.
The glass mantle and shade are missing.

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 13-6-18-1
The turn knob for raising the wick on the above lamp. 

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 12-1-3-6
Mould #20124, dated c.1892

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 121-1-3-5
Impressed maker's mark on mould #20124,
dated c.1892.


(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 14-6-23-1
This mark was used from 1910 to 1913, 
after the takeover by 
Wilhelmsburger Steingut- ind Porzellanfabrik.

(R.D.Z.) Rudolf Ditmar / Rudolf Ditmar Erben 14-8-29-1
This mark was used from the date of the creation of the country of Czechoslovakia in October 1918 to the Anschluss in March 1938.

  If you require an identification and / or a valuation, click HERE. 
● For any other reason, e-mail the author
  Stein Marks © 2009 - 2017. Copyright. All rights reserved. ● 


Web site created and maintained using   link to web4work