Postby silvermakersmarks » Thu Aug 15, 2019 2:21 am
Hi and welcome to the forum.
Yes, this is definitely a London 1754 hallmark. Unfortunately I cannot make anything of the maker's mark either; my best guesses are that it's either FM or EM but I have not found anything which matches these initials with the same lettering style.
It would be interesting to know a bit more about the object - if it's a solid-bottomed dish, for example, and what size it is.
Phil