Irwin-pedersen

[MAford=5]

There is an M2 marking there. I thought it was a 12 at first. I'm reading and re-reading War Baby trying to figure out the IP, SG, S'G' story!

The S'G' slide also has a letter J on the side.


Ray


Attachment 21215Attachment 21214

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[Maniac]

There is an M2 marking there. I thought it was a 12 at first. I'm reading and re-reading War Baby trying to figure out the IP, SG, S'G' story!

The S'G' slide also has a letter J on the side.


Ray

FWIW Ray, my 1.87 mil S'G' has the same sideways J in the same location as yours

[Mikey51]

Are they M's or N's ?Attachment 21216

[MAford=5]

I'm not sure what the stamping stands for. I have studied it under fairly high magnification and can't make out the other leg if it is an M. It was either stamped too far back on the radius if stamping occurred after milling or was stamped before the radius was finalized. Could have worn down in use also I suppose.

Ray

[MAford=5]

Another view with better lighting.

Ray


Attachment 21223