Lakelander-

There are a couple of things about that gun that make it somewhat difficult to idnetify.
I assure you that if you send it to me here in Nevada I will be able to much more properly assess and identify it's features and function.

Send me a message with your shipping information, and I will dispatch a pre-built shipping crate for it, return postage fully paid by me as a gesture of my generosity.

The identification process can take months or even years, but the process is guaranteed to be entertaining and fulfilling to me during the course of the work.

Nice Gun!

Cheers
Tinker