I have a Charles Daly (Miroku) 20ga O/U, serial #210421. I believe it to be 30's or 40's era, can anyone help me with finding the production date (year) or direct me to where I can find it myself? Any and all help will be appreciated. Thanks.

go to google and type in teh serial number. i haev a charles daly and i love it. i would guess it's from the 40's. thats just a guess

Already tried that on google, several different ways with no result.