Condition?
Made in 1919. Check the associated link.
fair condition 300-400.
Greatly dependent on condition. from $200 to $1,200 for new in the box.
According to the Remington website, there are three possible years for the manufacture of your Remington UMC 380, with a serial number of PA 50795. Those years are 1995, 1968, or 1923.
http://stevespages.com/ipb-remington-51.html
Manufactured 1919
Depends on original condition from a $100 parts gun to as much as a $1,200 new in the box.
Depends greatly on Condition, Condition, Condition, and Condition! From $200 to $800+ for LNIB w/ cleaning rod, instruction manual.
Someone at the Remington Society of America web site could probably help you.
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.
Depends on condition, condition, and condition. From $100 to $1,200 LNIB.