Can't determine hallmark or model, but Fred Harvey pretty much invented the chain restaurant idea in the 1870's using railway stations to establish company-based dinner joints. Did you ever see the movie "The Harvey Girls"? (1940's) It's based on his hiring practices. Still poking around hallmarks but there's soooo many. This might have been swiped from one of his establishments!
Thanks John for the info on the piece, I hate to think you're right, but it does not say sterling anywhere on it. Looking at Gorham date marks however, P was used to denote 1883. The E before it may be a highly stylized E but I'd like to think it's another mark from the mfr. Can't determine the symbol in the cartouche and cannot find an anchor on it.