You can join the A.H. Fox Collectors Association, Inc. and get a photocopy of the production card for about $40.

https://foxcollectors.com/

Or, a few years ago Savage sent the production cards to the McCracken Research Library at the Buffalo Bill Center of the West, and you can get a letter on your gun from them.


https://centerofthewest.org/explore/firearms/firearms-records/savage/