Try want ads, for sale ads, gun shows, gun shops, pawn shops, garage sale, estate sales, on line auctions, egunparts.
Your best chance at finding parts for this .22cal single shot is Numrich gun parts corp.They may be found on the web.
in your house
With the serial number that you provided,your Winchester model 1906 .22cal rifle was made in the year 1912.
With the serial number that you have supplied,your Winchester model 1890 pump action .22cal rifle was made in the year 1912.
1912
The Unknown Model - 1912 was released on: USA: 16 March 1912
The Wax Model - 1912 was released on: USA: 3 July 1912
50-150 USD or so
Winchester Model 12 slide action shotguns were marked as the "Model 1912" from 1912-1919. Godbear Tennessee
Try a want ad or a gun show.
The Little Indian Model - 1912 was released on: USA: 4 December 1912
The no.26 was made by stevens between 1912-1945.There was 501,500 made during this time span.