A Pair of King's Pattern Sugar Tongs Hallmarked London 1824, please may I have some advice on the maker?



Not sure if the Makers mark is CE or CF - could it be Charles Eley, Crispin Fuller or Charles Fox?
The same mark taken at a different angle:

I presume the incuse "A" is a journeyman's mark?
I think all might have been working around the same time, appreciate any thoughts.
Regards,
Simon