Jumbo-sized magnet (4.5" x 7") pictures a 1950s 2-page advertisement for Toro lawn mowers. Highlighted in the ad: Sportslawn 18,21, 24 and 31, Whirlwind 18 and 20, Starlawn 27 and the Professional 76.
Note: when tiny text in the ad is reduced to to less than a quarter the size, it is not legible. If your eyes are as old as mine, you may need a magnifying glass to read the smallest type. With that in mind, I've deleted sentences of sell text beneath the bottom row of mowers.
Toro was founded in 1914 by the Bull Tractor company to build turf and landscape equipment. In 1986 it acquired Wheel Horse from American Motors, then three years later acquired Lawn-Boy, Rain Master and other manufacturers of turf-maintenance equipment, including Hayter, Lawn Genie, Irritrol, Exmark and Pope. According to Wikipedia, in 2007 the company shifted focus from residential professional markets such as golf courses, sports fields and municipal parks. It's last major acquisition, in 2014, was for Boss Products snow removal equipment.