Thanks to Sir Watkyn's lead, here's a gem of an advertisement from the Gorham Mfg. Co. that shows that Gorham won a restraining order against F. & M. Weintraub in 1909 preventing them using marks that were considered too similar to those used by Gorham:
![Image](http://www.925-1000.com/td/f/American/Gorham-Weintraub-1910.jpg)
Gorham Mfg. Company - Providence, R.I. - 1910
This long-running mystery of the identity of those marks is finally over!
Trev.