Manufacture date of Remington dbl. serial?

Answer 1

There's atleast 15 variations of the double derringer. Some are true serial no's and others are batch numbers. You first have to clearly list the writing and it's location to even have a start on which type and model you have to get it into the correct period. If however if this is one of the last model/types (has the letters UMC on top of the barrel) and is made 1921 or later there is a date code stamped on the locking lug under the barrel. This code can be looked up on the Remington Society of America under the Manufactured Date link.