Bronze making is traditionally French, but was imported to Vienna in 1850 when Mathias Bermann established a smelting works and began to carve and paint animal figurines.
Another workshop, belonging to Franz Bergmann, gained an equal reputation. Following in his tracks, Bergmann's son established the "Namgreb" stamp which is the anagram of his name.
The production of bronze figurines will gain such success that some fifty workshops will be opened by the end of the century. Prospering until the First World War, it is at this time that a stamp is introduced to fight against forgeries. Only alloys of yellow copper and copper and bronze are entitled to bear this stamp. Because the smaller bronzes were not signed by the artists, specific markings appeared such as;
Ges. (Gesellschaft - company or corporation)

Gesch (geschützt - registered)
U. (und Sohn - and son)
Ausgabe (edition)