Try Numerich gunpartscorp.com, Jack First jackfirstgun.com, or Bob's Gun Shop gun-parts.com
ummmmmm i dunno got to the police station and ask for his file!!!!
www.ithacagun.com/downloads/model_37_field_maintenance_manual_090402.pdf
serial #
By the serial #
http://www.diamondgunsmithing.com/index.html
Perhaps you mean 1907. In any event, it is the 'Crass' model Ithaca shotgun made in 1902. Value is dependent upon grade and condition. sales@countrygunsmith.net
http://www.gunstocksinc.com/web_pages/Plate-pics/Ithaca-Stocks/Itaca-stocks.htm
Remington
If you can find one, yes.
Go to the "ithacagun" dot com home website for parts.
Ithaca may still be in business. Search for them on the internet. Check auctionarms.com, gunauction.com and eBay for owner's manuals. You will find a link to the Ithaca firearms schematics page below.
There is no S12 listed in the Standard Catalog. Only 11 people in the world can own a Sousa Grade Ithaca double. If you have one and have lost the barrels you are out of luck. If it is a single barrel trap gun, the odds are not much better.