Recently bought a M1 Carbine marked Winchester serial # 115XXXX. Unlike my Garand I can't find a date on the bbl or many of the ord and mfg marks on various parts. The stock appears original and has seen plenty of action but isn't cracked or broken. What is the best place to start searching for a build date, and locations of various parts markings for this gun. BTW this gun was (according to customs paperwork) shipped intact from Israel on LEO forms. Out of 5 rifles we got 2 Winchesters, 2 Inlands and a Rockola, all in good mechanical shape. Any info would be appreaciated. Buzzy