Cleaning some heavy crud off a box of recoil plates. Found this type III with the SG stamped on it. After oiling it.....wondering if this is a 'R' stamped above the G. I've never seen a R over SG plate. So I wouldn't know where the R would have been placed. Does it look like a R to anyone? Or am I just seeing lines from the milling along with the light pitting.

tia
Charlie-painter777



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