I have been trying to identify this manufacturer for years. This pattern was sold by Kimbal & Sons, C. Wyman as well as Palmer & Bachelders. The patent date is listed on all the pieces as well as each seller.
It is engraved Pat’d Feb 1880 on each piece.
I found a patent issued to Durgin in 1880, with a similar description, but of course no drawing. The patent number was 11,655 dated February 17, 1880, that I found in Google patent search. I can forward a copy of this if it would help.
Any help would be greatly appreciated