Maxson's Drill Cards, J.L. Hammett Co. Newark, c. 1934

Maxson's Self-Keyed Fundamental Number Work Drill Cards, J.L. Hammett Co. Newark. Long division flashcards in a box that reads "Maxon's Self-Keyed Fundamental Number Work Set No. 11. Long Division 3 Places. For Sale By J.L. Hammett Co. Newark NJ, Cambridge Mass." The back of the box reads "A Systematic, Economical and Thorough Arrangement of Numbers for Acquiring Accuracy and Rapidity in the FUndamental Operations. Invented and Compiled by William S. Maxson, Yonkers NY. Price Sixty Cents. Pre Set Post Paid".