Pulled out mine and on top it reads: RCBS
5-0-5 scale
5-0-5 is a registered t.m.
of OHAUS SCALE CORP.
This sticker on front also has an ounce to grain conversion chart.

Turn it over, cast into the underside is:
MFG . BY OHAUS SCALE CORP.
UNION, N.J., U.S.A.
7101-10

There is a sticker that reads:H440-17-88
The scale is not that old. I'm thinking 1988 might be the date? But at least it's made USA.
Gary