The Gilson 52120 RE12E is a riding lawn mower produced in 1987 by Gilson. It features a 12 hp (8.9 kW) single-cylinder air-cooled gasoline engine with electric start, a 5-speed belt-driven transmission with reverse, and two-wheel manual steering. The mower includes a 30-inch (76 cm) Gilson mower deck with a single blade and manual lift. It has an open operator station and uses a 12-volt negative ground electrical system. The original price was $1,399 in 1987.