The Bolens Estate Keeper 930 is a lawn tractor produced from 1963 to 1966 as part of the Frame Steer Series. It features an articulated front-mount mower design and is powered by a 7.5 hp Wisconsin S7D 304cc 1-cylinder air-cooled gasoline engine. The tractor has a 6-speed gear transmission with 2 reverse gears, two-wheel drive, and manual articulated steering. It has a wheelbase of 29 inches, weighs 600 lbs, and uses 16x6.50-8 lawn/turf tires. Attachments include various front-mount mower decks, a snowblower, and a blade. The original price was $756 in 1965.