Lot 060 – 1921 Auto-Ordnance “Self-Acting Breech Mechanism” Advertisement

Original 1921 Early 1/2 Page Advertisement from Auto-Ordnance advertising their new “Self-Acting Breech Mechanism”  which lists both their Thompson Auto-Rifle and the Thompson Submachine Gun. This was the cornerstone of Mr. Thompson’s firearm design, this delayed block back which was first tried to be incorporated in a rifle and failed which then finally resulted in the Thompson Submachine Gun. Full page pulled from a 1921 Dated Army Ordnance Magazine in excellent condition measuring 8.5 x 11.5 approximately.