Fair enough on the picture, I am a complete luddite when it comes to technology, but I will see if I can't get some help to post some pictures of the Buck Butterfly. For now you will have to settle for a poor description. It was made by Leroy Remer and bears his "LR". Its also marked BUCK USA and 1 of 1. It is a 3" mirror polished blade with mother of pearl inserts in the handles. All and all a pretty knife.
And as to the hunting use, there have been many attempts to have butterfly knives used as hunting knives. In the 80's a lot of the import companies were pushing skinning butterfly knives. Some are quite interesting. If you are familiar Walter Erickson he has a custom balisong maker active around the 80's who was a serious hunter, he made many very interesting butterfly hunting knives. Including some that were double bladed so you would have two skinning knives with essentially both blades being a full tanged fixed blade knife. (I may need to post a picture to make my description make sense). So it has been done, and Buck could do it. I think it would be more of a "would customers really buy it" type deal.
BTW I love your sharpener, that is cool!