I gave a short, 20 minute presentation on makers’ marks which
included on quality marking in the US.
This was my understanding:
-You do not have to stamp your work with a quality (precious metal
content) mark at all.
-You may stamp your logo, name --makers’ mark-- without any quality
-if you do stamp quality then you must also stamp your makers’ mark.
-by law, each precious metal element must be stamped with the proper
mark–14k, 18k,.925, etc. So the 14k side of the ring should be
stamped as such and the sterling side stamped “sterling"or”.925".
-your makers’ mark needs to be stamped in close proximity.
That being said, many if not most, simply stamp their mark and the
various quality stamps somewhere on the piece. It just simply seems
to be the only way, even though it is technically not in compliance.
I know that some smiths just stamp their maker’s mark and avoid the
whole technical dilemma.
Jim Binnion, you might have something to add…