Please don't rotate the barrel. I cant tell you the number of times that I've seen beautiful old Remington 51's buggered by trying to disassemble them like a Colt or FN.
I'm just sniping the disassemble part
Disassembly is actually pretty complicated. I suggest you purchase one of the reproduction factory owners manuals.
Remington's website has what you are looking for.
Yes, that would be the Model 51 made in 380 and 32 auto.
Click on the link below for photo Model 51
It's an inspection mark. If your interested in more information about the Model 51 there is a survey currently being conducted for them on the Remington Society of America under current research.
Model 51 manual located here - http://stevespages.com/pdf/remington_51.pdf
Model 52? ??? Model 51?
The Remington Model 51 pistol was not made by Walther. Has nothing to do with Walther. See the link at the right for a reproduction manual. email@example.com
What Model 51 pistol or a rifle and what model?
updated answer: The .380 Remington Arms UMC [Union Metallic Cartridge Co] pistol is the semi-automatic centerfire model 51 pocket pistol, also made in .32 in much smaller numbers, with production of the two calibers totaling about 65,000 from 1918 - 1927. The model 51 was designed by famed weapons designer John Pedersen, and all model 51 s/n start with "PA" for "Pedersen Automatic". They are highly regarded for their ease of use (although not ease of disassembling and reassembling). Primary US competitors were the Savage Arms pocket pistols (models 1907, 1915 and 1917), made 1908-1928, also in .32 and .380, and the Colt pocket pistols. original answer: Pistol? Semi-auto Model 51. No pistols.
100-500 USD Well that has to be a Model 51... Depends greatly on Condition, Condition, Condition, and Condition! From $200 to $800 LNIB w/ cleaning rod, instruction manual.
Start with these guys... http://remingtonsociety.com/rsa/research/Model51
Check the date code on the Remington Society of America here: http://remingtonsociety.com/rsa/questions/barrelcodes
Remington didn't make a "1920's" handgun. The XP was a single shot bolt but not in 22, and the Model 51 was in 32 and 380, the Model 95 Derringer was still made but it was 41 rimfire. If it's a multi-barrel 22 with Remington on it it's a E. Remington and either a ZigZag (6 shot), Elliot (5 shot) or a single shot vest pistol, all of which are from the 1860-1870's. Also a Rolling Block Tartget 22 but wasn't made that late, last version was a 1901. I should add however, there are people who have made either the Model 4 or Model 6 into pistols they are also rolling blocks.
The later version (15 grooves on slide) with the 1920 and 1921 patent dates are valued at: V.G. Good Fair Poor $500 275 125 75 Early versions (9 grooves on slide) run about 10% higher.
Depends on condition that is key, from $200 to $800 NEW IN BOX w/ accessories.
Depends on condition, condition, and condition, anywhere from 100.- to 800.- for like new in box.
Depends on condition, condition, and condition... From $350 to $1,000 for like new in the box.
USMC?Model 51 depends on condition, anywhere from 300 - 1000 for new in the box.If it's marked US or USMC however that's a different story, the gun needs to be examined it's still debated if these are real or fakes.