I found a LNIB 1076. Box and docs, trigger lock, 3 mags with white followers.

The product code on the box is 108248. The Julian date code is 8101. Is there any way to tell if this is an FBI 1076 - short of a Jinks letter?

Asking is $650. Is that about what a non FBI 1076 brings these days? If it is an FBI 1076, what does that make it worth? Thanks! Regards 18DAI