James,
Indeed, could be the french 7,65 long cartridge. Their own invention, based on a slightly lengthened 7,65 browning (.32 acp) round. It is identical in dimensions to the .30 pedersen, but it's not the same cartridge.
The round was developend around 1925 and was in use in France until the end of WW2. Your box probably dates from around 1935-1945. Judging from the lotnumber I'd say 1940.
If you measure the global height of the box you can compare it agains the OAL of the 7,65 long rounds, which is some 30.2 / 30.5 mm (1.189 - 1.194 inches). They are just about as long as a normal 9x19 para round.
Shown are some examples of French 7,65 long cartridges, in brass and laquered steel (WW2).
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