State Stamp On Penny

I have come across a 1983 penny that has an outline of the state of Connecticut and the initials CT impressed on the obverse. I do not see any ill-effects on the reverse. No pics - can't get the camera to show it clearly.
-How is this put on the coin? Handheld tool or larger machine?
-Is this something people do to see how widely a coin circulates (like a Where's George dollar)?
-Was this a fad in another era?
-How is this put on the coin? Handheld tool or larger machine?
-Is this something people do to see how widely a coin circulates (like a Where's George dollar)?
-Was this a fad in another era?
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Comments
All the states, masonic symbols, Kennedy added, bicentennial, space landings, anything.
Here's a few:
<< <i>They made all sorts of counterstamps on cents. >>
So it was issued by the mint with the stamp?
here is specific info about what you have
as noted they are damaged, and not for pure coin collectors (numimatics), however, there are some collectors of these and other counterstamped coins.
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