DATA REQUEST for 42 byf Lugers

[Frank]

Mike, thanks for the new pictures. You indeed have an odd ball, serial number is 9368h with a 8.81 bore gauge. I also have an odd ball. A 41 byf, S/N 6290z, without a bore guage.

My only guess would be a production error that was either missed or perhaps a pistol part that had to be replaced in a latter stage of production.