If my recall is correct, the early stocks did not have a trapdoor in the butt plate, nor a hole in the wood. The 'Army' realized the importance of having a need for rod and a shell extractor, since extraction problems appeared at the battle of the Little Bighorn. (Also the wrist breaking) The new type stocks had a beefier shorter wrist and had a trapdoor for a 3 piece rod, and a broken shell extractor. The old cases were more copper and the extractor had a tendancy to rip through when hot or dirty. Later they increased the brass content and the rim became stronger and relieved that issue from occuring.
A couple more things about your friends rifle. Appears 100% original. The early rifles had a sling loop on the front band, AND the rear sight was held to the receiver by rivits. Your friends rifle had both. His stock alone doubles the value.
My band has no loop. Have no idea why they were removed, probably caught on things, and the rivits were replaced later with screws, to make sight repair an easy thing.
Later view of buttplate.
Thus your friends rifle would be twice the value of mine, although my serial is lower, and appears in better condition. His stock with the original parts, and rivits makes the value of his twice mine, all things being considered.
