I have an opportunity to trade for a gun that I've never owned previously and don't know anything about, so I thought I'd consult the ODT experts. I was told it is rare but I have no idea. It is an older Browning Hi Power that the owner says is rare because it has the Browning stamp on one side of the slide and Fabrique Nationale (FN) on the other side. No box or docs, just the gun and two mags. Finish is pretty worn but he says it's great mechanically. What do you guys think, is it worth me dealing for it? Any idea on fair market value? Thanks for any info! (No clue why the Bic lighter is in the pics!)