The collector term for the mark stamped into the left side of the stock upon original acceptance of the rifle by the government. The earliest stamps bore the initials of the manufacturer over the initials of the inspector under whose authority it was accepted. In late 1940 the Springfield Armory format was changed to use the initials of the armory Commandant. At Winchester the new type used GHD, the initials of the Chief of Ordnance. In 1953 the old cartouche was changed to the boxed Eagle and Stars called the Defense Acceptance Stamp. Springfield, Harrington & Richardson, and International Harvester all used the DAS from that time onward.