The Simplicity Sovereign 3415H is a 1972 garden tractor built by Simplicity, part of Allis Chalmers, in Port Washington, Wisconsin, USA. It features a 15 hp Briggs & Stratton 531cc 1-cylinder gasoline engine with electric start and a hydrostatic transmission offering infinite forward and reverse speeds. The tractor has a two-wheel drive with manual steering and an open operator station. It includes a mid PTO with independent clutch and mechanical idler pulley. Dimensions include a 48 inch wheelbase, 67 inch length, 36 inch width, 39.25 inch height, and a weight of 757 lbs. Tires are 16x6.50-8 front and 23x10.50-12 rear. Attachments available include 42" and 48" mid-mount mower decks, snowblowers, and blades. The 3415H is part of the Sovereign Series and related to models 3416H and 3314H.