ALLIS CHALMERS MODEL B-1
. . . POWERED FOR PERFORMANCE
. . . ENGINEERED FOR WORKING PLEASURE!
Hungry 42-in. Rotary Mower makes play out of large lawn care and never scalps your "beautiful velvet." Cuts up to 2 acres per hour . . . and within 5/8-in. of obstructions. Three blades and deep housing design provide uniform cut and require less power Front-axle suspension mounting gives free-floating action and keeps mower parallel to surface of ground . . . always playing "follow the leader" to oscillating action of front wheels. In this unique arrangement lies the patented secret of "no-scalp" mowing.
[Source: B-1 sales brochure, date unknown, courtesy of Karl Brandt, webmaster of the Vintage Garden Tractor Page]