I have 2 Type IV safeties, I'm looking for any information about the markings.

This first one came out of a DCM Carbine bought in 11-6-63. I can make out the SS in a circle marking, but on the other side it appears as though the E in E.I. was stamped over another stamping.
Any thoughts?




This 2nd one, I just pulled from a parts drawer to use for a comparison, when I noticed it has a circular impression on one side and shows the same impression on the other side followed by a I. Is this possibly a E.I. also? Maybe just a worn out stamp?
Out of a few dozen others I can seen none showing this same Circular type Impression.




Any Help Appreciated,
Charlie-painter777

---------- Post added at 06:28 PM ---------- Previous post was at 06:21 PM ----------

I may have found part of the answer concerning the first safety pictured in an old thread......
EI rotary safety humped?

Any Idea What the E in E.I. may have been stamped over?
It doesn't appear to be another SS in a circle like on the reverse side.

Charlie-painter777
Information
Warning: This is a relatively older thread
This discussion is older than 360 days. Some information contained in it may no longer be current.