In 1908 Fürstin Margarethe was pictured with the large diamond choker setted with 6 emerald and 6 ruby cabochons, as well as 2 pearls in the center. This dog collar was made by the workshop of Gebr Kreuter Hanau. Probably some more painted versions of the choker are presented, and the border with two similar lines of diamonds with some diamonds between are made at least.
The original sketch on top, of the important Emerald and Ruby Collier de Chien, is from the archive of the Kreuter& Co Hanau