
Serial number blocks were assigned by the Ordnance Department on an as needed basis, generally in response to the awarding of a contract to a given manufacturer.

This is not an accurate means of estimating the date the carbine was finally assembled or when it passed its final inspection. Some people estimate a carbine's date of manufacture by adding the quantities manufactured month to month Understanding Serial Numbers - Understanding Dates of Manufactureĭating a carbine by its serial number alone is difficult and not always accurate given the circumstances inherent with manufacturing and the logistics situationĭuring the time the carbines were manufactured. Inland Mfg - Engineering & Presentation Gifts
