Markings: The early WWII Britishicon sniper rifles' marking system is known to have evolved over the first couple of years. Some markings did not appear in the first year or so. I am curious to know if ALL of the USMC scopes were marked J. UNERTL / USMC- SNIPER / #### from the very beginning of their procurement. This is probably impossible to know unless documented specimens are known which have different markings from later standardized versions. We know for example a 1903 Springfield that went to the UK and later back to the States and is now in a private collection, with SN ending in ... 1776, does not have the normal "US" marking. Exceptions do exist.

Serial numbers: I wonder how certain researchers are about the serial number range of the USMC scopes being 1,000 to about 2,775 as this one, 1114, falls within that range but does not have the USMC-SNIPER marking. Given the pressures of war, did the USMC accept scopes without the special USMC-SNIPER marking?