Late 1930’s 20 Round Thompson Magazine called the “Maguire Era” Error Patent Magazine to differentiate it from the earlier Patent Stamped Magazines. Stamped with – PATENTED – AUG. 20, 1920 AUG. 24, 1920 – JAN. 11, 1921
The magazine is in very good used condition showing some bluing loss and a pin head size dent but no real damage.
