Springfield M1899 Krag-Jørgensen carbine
Designed by the Norwegians Ole Herman Johannes Krag and Erik Jørgensen c.1886 and manufactured by the Springfield Arsenal c.1899-1904 for the US Army - serial number
.30-40 Krag five-round ‘half-capsule’ fixed magazine, bolt action repeater, magazine cut-off, M1901 rear sights.
The Krag rifles and carbines were not only adopted by the United States, but also before that, with some variations, by Norway and Denmark. They are one of the very few foreign designs adopted by the US Army, and was replaced by the Springfield M1903 which, although a Mauder copy, was technically an indigenous design.