Good question Capt Frank!

According to Brophy's book "The Krag Rifle", The model 1892 is exceptional because it is identified by the year designation of 1892, although none was manufactured until 1894... Model 1892 receivers can be dated either 1894 or 1895.

Collectors generally agree, according to Brophy, is that there are two types:

Type 1 has a solid upper band and a brass-tipped cleaning rod under the barrel.

Type 2 has an open upper band and one-piece steel cleaning rod.

What I think is especially interesting, besides being a Model 1892, is seeing some features that brought about changes to future models.  For example the chunk of wood missing near the butt plate toe.  Later models incorporated a butt plate that had the toe curved inward to protect the wood.