Tractor registration postcard from the State of Michigan. Caption on back: This certifies that the party named below has duly registered the Motor Vehicle described for the year ending Dec. 31, 1921. Sec. of State, Michigan. Model License No. 51-854 Make Chalmers Eng. No. Fac. No. 78033 Style T Power G 1-18-n Sent on: Jan 28, 1921 Sent to: Howard W. Cavanaugh, 35 Broad, Battle Creek, MI Sent from: Secretary of State, Lansing, MI