I have a full set of .used 030" over TRW forged pistons that I removed from my '62 QB block, if that's what these are. I remember they had similar numbers, just not in front of them at the moment. Plans are to hang on to these for now.
Might have a few "strays" of the same ilk, would need to check. I recall there is at least one stray piston that was high perf forged and .030" over.
Right now I'm 450 miles away from them so I can't confirm.