Yes, there is. There are several gun price guides, ONE of which is published under the trade name Blue Book. It is a price GUIDE.
BLue Book of gun values
Blue Book of Firearms Values, Standard Dictionary of Firearms.
Check Blue Book of Gun Values
It is the title of a price guide for firearms, produced by Blue Book Publishing. See the link below:
Blue Book of Gun Values
Contact the maker, Blue Book for Firearms, Proofhouse.com
Blue Book of Gun Values
Check any "Catalogue blue book of Firearms" in a local book store.
Check any "Catalogue blue book of Firearms" in a local book store.
Check the auction sites and the Blue Book of Firearms.
Blue Book of Gun Values will tell you.
Blue book of gun values