A wheeled tractor is a self-propelled vehicle on wheels intended for pulling and activation of various vehicles and tools. Tractors are used in agriculture, construction works, and in industry. The first steam-powered wheeled tractor was manufactured in 1832-1837 by John Heathcoat in England. The first wheeled tractor in Russia was assembled by Yakov Mamin in 1910, but mass production was launched in 1922-1924.
The basis of a tractor is a body where the undercarriage, a power train, a cab with controls and other equipment are attached. The undercarriage has two axles, with one, two or more wheels mountable on one hub. A tractor is equipped with a rear (less frequently - front) attachment, PTO shafts, connectors for hydraulic and electrical systems of the attached/towing equipment.
The postage stamps provide images of tractors: Karlik, STZ 15/30, Vladimirets T-25A, and Kirovets K-7M.
The composition of the souvenir pack in cover “History of the Russian tractor building industry. Wheel-type tractors” is included:
- stamps №№2923-2926 “History of the Russian tractor building industry. Wheel-type tractors”;
- 4 FDC with cancellation in Moscow “History of the Russian tractor building industry. Wheel-type tractors”;
- vignette.
| Paper |
Printing method |
Edition |
| Chalk surfaced |
Offset + glossy lamination |
550 pcs. |