Re: Hello, and need help with H&R Revolver
these patent date marking were used on the H&R auto-ejecting second model. they were used between 1898 and 1905. check the bottom of the top strap for another serial number location that should have a letter code prefix. this letter code will help determine the year of manufacture. be aware H&R did not make the switch to smokeless powder until 1905 so this revolver very well could be chambered for black powder cartridge pressures.