[Too Many Projects]

If it was a military bike, the restamp may be an inventory number, not enough digits to be a vin.

Interesting that the delivery date was 1944 with a build date in '42.

The lower stamp might be a better clue as it ends in 7 and the engine case clearly has a 7 visible at the end, but the pic is too blurry to read.
Cool bike just the same and I would believe the price is reasonable enough to not lose money.

Mark is right about the tank sticker, waaaaay out of date for the bike, but may be easy enough to remove.