Hallmarks on a pair of nutcrackers

[Nutcracker]

A pair nutcracker, double-hinged, King's patter handles, seems to be silver or nickel plated. Almost identical to these Georgian silver nutcracker.

There are two hallmarks; one hard to read (Jor Dan?) and another one with a three-prong fork. No other marking. Have you ever come across anything like this?





P.S.
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