MRC:
The lettering or design on the item,or that is the item.AYBM
Inscription:
1st inscription: sight, bore, opt: m45e1; 2nd inscription: serial no.; 3rd inscription: 19200-10548286; 4th inscription: us 1st side
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Qq-a-250/2, alloy 3003, h14 federal specification 1st material response or qq-a-250/2, alloy 3003, h24 federal specification 2nd material response