Hi
Welcome to the forum
I have saved, enlarged and embedded one of your images.

I think I can see lion`s tail on the right and the shield with letter ``W`` on the left.
If so, the maker is WHITING MANUFACTURING COMPANY - New York (founded in 1866. Purchased by Gorham in 1924 and moved to Providence, RI in 1926).
More info is here (the link)
http://www.925-1000.com/americansilver_W4.htmlLet`s wait what other members of the forum have to say.
Regards