Matt,
The photo is a Model 1894 rifle configuration that is about the same age but in excellent condition. I am betting right about now it is obvious the difference. The sharp edges on the receiver look a bit rounded in your image 002 compared to the one below. Also you can make out the remnant bluing in the protected areas around the rear barrel sight and the ring stud in your photos.
Even when a rifle has been reblued the softness of the edges and the relatively shallow lettering on the upper tang and barrel address is a give away to the rifles past.
The mantle sound like a great spot for it.
2bit