Any Techincal Manual TM 9-1005-211-12/34/P. The M1911 series pistols are all the same. You can find this TM at any gunshow/gun store in your area.
You can find parts and/or a manual for an Ithaca Model 72 saddle gun in 22WMRF on many gun websites including GunBroker.com and GunPartsCorp.com. You can also find these items online at DiamondGunSmithing.com.
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.
You can find these numbers in the manual that come with your gun. They are also present on the handle of the gun.
This was an imported rifle, not manufactured by Ithaca, but sold under their name. You might get lucky and find one at gunbroker.com. Occasionally people will be selling old manuals, or other items related to these. Good luck!
One can find Ithaca airport northeast of the business district of Ithaca. Ithaca is the largest city in Tompkins county, in New York, the most well-known city in America.
www.ithacagun.com/downloads/model_37_field_maintenance_manual_090402.pdf
http://www.diamondgunsmithing.com/index.html
1942 i think....go to www.coolgunsite.com, you can find out
"Ithaca Featherlight Repeaters" by Walter Claude Snyder
Proofhouse.com has sn data. If not there, call Colt.
By it's serial number.Go to proofhouse.com to find the date of manufacture.
Look in "The Ithaca Gun Company - From the Beginning"