Agree with this likely being an over stamp of another model mark. There was at least one model that was deliberately stamped this way, the 627-0; I think the 627 was made in very small numbers and the -0 followed soon afterward with fairly minor changes. (Just like Dr Lou wrote right before me ).
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Alan
SWCA LM 2023, SWHF 220
Last edited by murphydog; 09-15-2017 at 10:02 AM.
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