Unknown markings

[B. Dudley]

The T would be for twist steel.

Without seeing a pic of the other markings, i cannot say. It does not sound like anything commonly found on thise guns. Are those markings anywhere else on the gun?

[Austin J Hawthorne Jr.]

Nowhere else that I can see. I've only owned 4-5 other lifters and do not recall seeing any similar letters on those guns. I'll see if I can get my wife to help me post photos.