Info needed and a question of worth.
 

Good mornin all,
I recently began cleaning out my attic and started going through a box of items that belonged to my grandfather that I got when he passed away, some of which I want to sell. One was a Buck Knives Brand belt buckle.
I know that it is fairly old but I would like to get some more info if anyone knows anything so I don't sell it for less than it's value. There is a number on the back, 682, but I don't know if it has any meaning. Any info would be helpful. I have included a picture. Thanks. http://bit.ly/gr2czf