This is a slightly-used Jackass brand  #156 shoulder holster for a medium frame auto which Galco tells me is for either a Baretta 84 or 85 or a Browning BDA 380.  Holster's previous owner obviously did a modification to the strap to move the male snap a little closer in to make it a bit snugger on his pistol.  

I had a leather guy look at it and he says the current snap could be popped out and another put in original hole (get 'em at Tandy's) and take it back original.  Prev owner did not glue or sew the strap down, which was good and the buyer can either restore it or leave it alone and glue/sew it down or not.

I pay shipping.