The Type 38 in 6.5x50mm Arisaka caliber was produced from 1905 to the early 1940s at arsenals in Japan, Manchuria, and Korea. The rifle was intended to be replaced by the Arisaka Type 99 but remained in service until the end of WW II.
Dust cover intact and interesting stock cartouche. The Mum is intact.
Based on the Mauser action and over-all design. The "38th Year" in the nomenclature refers to the 38th Year of reign of the Emperor at the time of introduction (1905).
The bore is dark, but may clean.