Gorham Bell Confusion

Greetings! I hope you don’t mind but I copy and pasted this entry from a previous submission to another (and quite dead!) forum.

I’ve recently stumbled upon this Gorham bell, and I’m having a bit of confusion about the mark. It has the 1852-1865 hallmark, but a letter N for the year 1881. Isn’t this a contradiction? Is this an authentic Gorham Bell? Also what does the 335 stand for? Sorry if these are silly questions, I am very new to this. Thank you for your time.







UziaqwK.jpg