I was looking through my 6.35 boxes searching for Geco date codes when I realized the box I was holding was a G Roth box, not a Geco box. But the similarity to a 1932 Geco box appeared too surprising to be accidental. Even the separator inside the tray looks the same.
I don’t know of any relationship between Geco and Roth at this time. The Roth cartridge is marked “GR (intwined) 6.32” with a brass primer. The cartridge from the Geco box is marked “Geco. 6.35.” with a copper Sinoxid primer. Both have CN bullets but surprisingly, to me, the Roth bullet is magnetic and the Geco bullet is not.
It occured to me that perhaps the ammo was made by Geco for Roth, but there is no box code on the base of the Roth box, and Geco put their box date code on the bottom of boxes they made for both RWS and S&B-S so it seems likely they would do the same for pistol ammo they made for Roth.
Many of the Forum members know a great deal more than I do about the relationship between European ammo companies in the 1930s. Why would Roth copy a Geco box pattern??? Hard data would be wonderful, but speculation also appreciated.