Side plate Switch! Results updated! 5-5-15

[DonVoigt]

I believe "we", Tim H. and I have solved the mystery of the funky side plate with the "T" on the inside and the sear safety cut out.

Someone has milled the outside surface down to remove either a number or pitting or ??
That is why there is a border around the rectangular hump, that much metal has been removed, leaving a "ledge".

I believe it should be considered a "messed with" original!

So I am still looking for a nice side plate DWM # 14, or blank.

Thanks for all the comments and help.