You will have to find a listing of all the serial numbers from the maker for the shotguns they made and go through them.
Only the BATFE can run a trace solely on the serial number.
Serial number trace is available up to #5103249 and it was made "After 1984", or in 1982, depending on which source you use.
blue book of gun values
If the engine on the vehicle is still the original from fabrication, the engine fabrication model serial number should be on it for identity trace.
m8124
I think it is 1991
Contact the maker.
No published serial number data.
Resources to do that are available only to law enforcement.
Resources to do that are available only to law enforcement.
I have a uncle Henry Schrade + LB7 USA with serial number AV25707 how old is it and what is it worth it is real good shape