If it is 3717745 let me know.
If it is 3717745 let me know.
FWIW the first scope used on the M1C was the M73. Original M73's are very rare. Many had the rubber eyeshade and steel sunshade installed and were remarked M81. The M73 markings were obliterated.
This might help...http://forums.thecmp.org/showthread.php?t=58389
You can post my serial there, I am not registered at the CMP forum.