Round stamp marks on Starrett 13 double square

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Forum topic by Brett posted 568 days ago 338 views 0 times favorited 1 reply Add to Favorites Watch
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621 posts in 1317 days

568 days ago

I bought a 4” Starrett 13 double square recently that is in good shape, except that there are several round stamp marks on it, each of which are identical and which look like a circle with two rows of numbers and letters inside. Anybody know what they could be? The square has someone’s names scratched onto it, so I don’t think the round stamps marks are necessarily for identification.

(I know, I know, I should include a picture, but I won’t have the opportunity till tomorrow.)

-- More tools, fewer machines.

1 reply so far

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2874 posts in 1122 days

#1 posted 568 days ago

Recertification marks?

I have some micrometers and gages that were recertified and stamped for about five years in an industrial setting, although these stamps are quite small.

-- Improvise.... Adapt...... Overcome!

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