Help with that hallmark

[Kamorek]

Hello

I just bought a small gold ring.
It has hallmarks:

A&K - Undefined maker's mark
? - Undefined mark (date letter?)
375 - Nine carat
Anchor - The Birmingham Assay Office







Could you help me to find who is behind A&K and what means that second mark?
Peter

[Kamorek]

I`ve found that marker`s mark AK means: Abraham Kemp. He was a gold ring maker. Date of Registration at The Birmingham Assay Office 05/01/1842.
On that ring is "A&K" but Abraham Kemp mark was "A*K" so I don`t know that is right what I`m thinking.

[Kamorek]

Case solved.
The sponsor initials A&K belonged to Allen & Kingfield, Manchester, they went into The Birmingham Assay Office archives in 2008.
The second mark is a ‘International Convention Mark’ this is the scales with a 375 inside.
Date letters became optional after 1999 so any item hallmarked in 2000 onward will only have a date letter is requested by the manufacturer.
Peter