Re: Iver Johnson Revolver Questions
this single patent date on the bottom of the butt was only used between 1911 and 1913. in order to properly identify your revolver i will need to know the serial number and letter code found on the left side of the grip frame under the grip (remove the grip to see) this is the main serial number location.
based soley on the one patent date marking you have a third model safety automatic hammerless revolver. the third model was manufactured between 1909 and 1941. all third models were designed for smokeless powder cartridge pressures. if you can provide the serial number and letter code (found under the left grip) i can give you an year of manufactured and how many were manufactured that year.