Marvin,
I checked the takedown lever and the only marks it has are the last two digits of the SN on lower side of it in the assembled position.
This gun had a two digit marked hold open latch added at a later date with an inspector's mark on the side of the frame next to the pin hole and a taller front sight with an inspector's mark also.
The mark on the side of the frame under the sideplate in one of the other photos that I posted resembles in my opinion a skull and crossbones,but it is not exactly clear;I was curious if anyone else would think so.
This is a photo with a small and large "T" in the photo(another couple of marks that I have been unable to find in the books I have)next to the recoil lug on the receiver.
Thanks for your help,Barry
http://mediaservice.photoisland.com/...4455187134.jpg