Item no. S617 (poster stamp)
Type: stamp
Country: Germany
Date of issue: 1910s
Catalog number: Not numbered
Poster stamp used by the company GEKA-WERKE G.m.b.H. in Offenbach am Main (Germany). It was chemical factory, owned by Dr. Gottlieb Krebs, manufacturing chemicals for photographic purposes like universal developer “Gekanol”, quick fixer “Schnell-Fixiersalz”, and flash light powder “Geka Blitzlichtpulver”, “Kunstlichtpräparate Kugelblitze”, smokeless flash light powder “Fumosin”.