unknown mark on a 18th century spoon

[R ingo]

Hello,
I have a english tea spoon without city mark. The spoon has a Hanoverian pattern with a double-drop and engraved initials in roman block. I think, the spoon was made in the middle of the 18th century or a little earlier.
I would be glad, if someone knows the maker and the city.

Thanks and kind regards,
Ringo

[Granmaa]

I think that's the mark of Ebenezer Coker who entered a similar mark in 1739 and 1751.

Miles

[R ingo]

Hello Granmaa/ Miles,
I thank you very much for your help!

Thanks and Kind regards,
Ringo