Wheel plate decoration

The badge includes a daisy, a spider in its web (Araneus diademata), and the name of the German town Durlach (near Karlsruhe). 
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GRITZNER “V”,  ca. 1925

Serial #: 2.700.131

Condition: Working

Is Singer 15K based.

Especially interesting are the decals in the bed with the three medals obtained in Exhibitions of Liége 1905 and Milano 1906

Any information about this maker would be appreciated.

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