Color oversized 18 x 27.75 calendar for 1919 entitled ‘Knights of Liberty-Glory's Sons,’ featuring artwork of General John J. Pershing atop his horse overlooking an immense line of marching World War I soldiers. Calendar text reads: “Monthly Follow-up Service, The Thos. D. Murphy Co. Art Calendars, Red Oak, Iowa, U.S.A., Greeting Cards.” Calendar features metal bars to top and bottom edges. Printed by the Thos. D. Murphy Co. of Red Oak, Iowa. In fine condition, with trivial edgewear.