The Simplicity 575 is a riding lawn mower produced from 1958 to 1959 as part of the Wonder Boy Series. It features a 5.75 hp Briggs & Stratton 231cc 1-cylinder air-cooled gasoline engine, a 2-speed belt-driven gear transmission with 2 forward and reverse gears, and two-wheel drive with manual steering. The mower has an open operator station and is equipped with lawn/turf tires sized 10x2.50 front and 4.00x8 rear. Attachments include 24" and 32" mid-mount mower decks and a 30" front-mount blade. It was built in Port Washington, Wisconsin, USA, and originally sold for $575 in 1960.