1937 UON Test #290 M-M Twin City ZT & Massey Challenger N662

This original 8.5 x 11" page has the results of the University of Nebraska Tractor Test #290 on the Minneapolis-Moline Twin City Model ZT on the front providing performance results based on their universal test methods.  On the reverse is an ad sponsored by Twin Disc Clutches As used in the new Twin-Power Challenger tractor from Massey-Harris of the same year.