March 1, 1942 dated TM that is type set and deals with ALL Types of the Browning Automatic rifle.  This is the coolest manual I have come to as of yet.  M1918, M1918a1, M1918a2, and the M1922 is mentioned (mentioned as obsolete!) and it goes through the mechanism with a fine tooth comb.  A must have and hard to find.  The binding seems to have let go on this, the pages can fall out but it appears unissued otherwise.