The Holt 2-Ton is an agricultural crawler tractor produced from 1921 to 1925 by Holt. It features a 4.1L 4-cylinder gasoline engine, a 3-speed gear transmission, and crawler drive. The tractor weighs 4000 lbs and has 10-inch wide tracks. It is also known as the Holt T-35 or 15-25. Estimated engine power is 28.3 hp for comparison purposes.