These guns were notoriously weak at the wrist, because the breechplug, and the tang, were only hooked together with a piece of cut off Allen wrench welded to the tang, that was stuck into the Allen screw that was used as a breechplug. I have had three of these guns, and two were straight maple, while the other appeared to be birch. The locks worked, but were nothing to write home about. The furniture was mostly formed, rather than cast. I think the only brass piece of furniture on the gun that was cast was the triggerguard.
This is the first one I've seen that was engraved. All the ones I've owned were kit guns. Maybe yours is one that was sold assembled.
Hungry Horse