What is the significance of TCB? I'm not a Pressley fan. Is that something that a fan would know about?

Does the right side of the barrel say, Airweight?

Swing out the cylinder and look on the frame. Do you see a model number, either M-36 or M-37? Is that why you think it's a M-36? If so, you certainly have a good small .38! (I have no idea what you know about guns. We get some real neophytes here. I don't mean to insult you.)

How about a larger, sharper picture? I can't see much of the initials. Is there a flower there, too?

Why do you think Elvis owned this gun? If you have proof, it's probably a valuable item.

Generally speaking, Elvis's guns and those he gave as gifts are pretty ornate.