During WW I, a number of companies made the 1911 for military service, including Remington UMC (for Union Metallic Cartridge). Remington produced about 21,500 of these weapons, serial numbered 1-21,676. They were made in 1918 and 1919 only. Blue Book value for a 95% original condition Remington 1911 is $2,500.00, but I certainly cannot vouch for the condition of your gun. Take this one to a competent appraiser before doing anything to it (including cleaning).
Condition?
Depends on condition, condition, and condition... From $350 to $1,000 for like new in the box.
remingtons are hard to find, in good condition ,from $200 to $1000
GREATLY depends on condition (condition and condition) anywhere from $100-$800 for like new in the box.
The value will be determined by the condition of the pistol. Anywhere from $0 to $500. In Mint condition especially in the box they can be worth double that.
50-300 or so
The value depends on condition, condition, condition, and condition. The original box and papers etc also add to value. Without knowing condition it is a $200 parts gun. It sounds as if you have a Remington model 51 semi-auto pistol which was made from 1918-1926. Without a detailed description of your pistol's overall condition, the value will range between 200-500 dollars depending on the overall condition. There were only 65,000 made by Remington during this time span.
value would depend on overall condition....................
Pistol
Greatly dependent on condition. from $200 to $1,200 for new in the box.
Depending on condition the blue book value is between $250 and $800
pistol made by Remington in 1943.........value would depend on overall condition. estimate from $600 - $800