Attachment 83374
A Remington Model 14-1/2, serial 20043, caliber .44-40 (aka .44 WCF) Based on the flush "REM-UMC" ammo indicator, the receiver not being tapped for a tang sight, and the last patent date on the barrel "Nov.19.12" as a I'd peg this rifle around 1913 production. The DCP Canadianproof indicates it was part of an order for 4,000 in 44-40 for use during the First World War. These rifles were scattered all over the Empire, and at least one (serial 34292) is still in the Imperial War Museum.
Remington 14 1/2 rifle (FIR 5354)