Notice Edwin Pugsley signed the receipt along with Col Robert Sears (WRA RS cartouche), it was thought that Pugsley felt the M1was not ready for
production. By the time Winchester started to manufacture the Educational Order batch of 500 rifles in Dec 1940 the old gas trap gas cylinder and
short barrel were gone.
Might be a nice GCAJournal article on the gas trap (s/n 15070) at Cody, I do not recall any photos