hey guys not much of a s&w guy so came to the pros, what do I have. its marked 25-2 1955 I know its a 44ar / 45acp and I think its had zinc phosphating (parkerized) done to it. ser#n378*** . I bought this at a sale they had two firearms in one case and sold them that way I wanted the colt that was with this. any help with what this is for sure and what its worth to resale would be much appreciated. thanks o2stk1