Model 622 393.  Everything is tight and right.  Neither blade wobbles in the least, neither blade is chipped or bent, both close and open properly, and the handle and rivets are solidly in place.  Clearly a very well-manufactured knife in better-than-usable condition.  Carbon steel blades have the expected discoloration, but no noteworthy flaws otherwise.  Examine the pictures closely; the shots are high-definition, so zoom in for any detail you might want to see.  I'll be happy to take additional pictures or answer questions upon request.  I don't know the bone or antler type, but it is lovely, and both sides are without chips or gouges, and they are completely intact.  I don't suppose you'll ever find this model in as good condition as is this.

A watcher informed me that the shipping cost eBay gave him was very, very high.  I charge buyers what it costs me to ship, and regardless of the estimate you see,  Shipping should be $10, at most, anywhere in the US.  If you pay more, I'll refund the difference between $10 and what you pay.

Total length with long blade extended:  4.75"

Long blade length:  2"

Short blade length:  1.5"

Closed length:  1 9/16"