You can call Remington at 1-800-243-9700 and go thru the menu selection. One of the menu options is to request information on your Remington based off the serial number. You read off your serial number and the guy looks up in the database the year the gun was made and what the original barrel was for that gun (if gun had barrel options like shotguns do).
The Remington Model 29 Pump Action shotgun was manufactured from 1930 to 1933. Approximately 38,000 produced.
You can call Remington Firearms at 1-800-243-9700. Listen to the prompts an it will give you a representative that can tell you the age of the gun by serial number
1911
1913
Manufactured 1913
1912
Can't be answered without a serial number.
1916
made 1910
Made in 1914
Manufactured 1906
Manufactured 1915