On July 15, stamps dedicated to wheeled tractors were put into postal circulation in the History of the Russian tractor building industry series

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.

Karlik was a simple tractor designed by engineer Yakov Mamin, which was produced by the Vozrozhdenie plant in Marksshtadt (currently, Marks of the Samara region) in 1924-1928. The main task, according to the designer, was the maximum simplicity of the design, affordability of machine maintenance for any peasant and the maximum maintainability in a handicraft shop in case of a shortage of commercial spare parts, since most of the parts were suitable for blacksmith and locksmith way. No remaining original sample of the tractor is known.

STZ-15/30 was a wheeled tractor model in production by the Stalingrad Tractor Plant since 1930 and the by Kharkov Tractor Plant since 1931. The tractor was intended to perform soil plowing with a two- or three-furrow plough, to work with mounted agricultural tools, and as a drive of stationary machines. In 1930-1940s, this tractor was the most widespread model in the USSR. The configuration was classical for tractors: rear driving wheels of larger diameter and front guiding wheels of smaller diameter, and a body on frame design. In total, the tractor output made 390.500 units.

Vladimirets T-25A was designed in 1973 by a group of engineers headed by V. Efros, the General Designer of the Vladimir tractor plant. The tractor was awarded the Quality Mark. The characteristics of the T-25A tractor permit using it for secondary tillage, crop planting, hay harvesting, cultivating green crops and gardens, transportation, etc. The tractor can be used as a drive of stationary machines. The model belongs to the 0.6 drawbar category and has a semi-frame design.

Kirovets K-7M was put into series production at the St. Petersburg Tractor Plant in 2022. The tractor's components and assemblies have evolved since the 1990s in the process of continuous modernization, and the design has been perfected. In terms of its appearance, the new flagship of the St. Petersburg Tractor Plant today is not inferior to its world analogues. The distinctive features of this vehicle are high productivity, design simplicity and reliability, maintainability, excellent cross-country capability and maneuverability.

The postage stamps provide images of tractors: Karlik, STZ-15/30, Vladimirets T-25A, and Kirovets K-7M.

In addition to the issue of the postage stamps, JSC Marka produced First Day Covers and special cancels for Cheboksary, Chelyabinsk, Moscow, St. Petersburg and Volgograd, as well as four maxi-cards and an illustrated envelope with postage stamps, a label and a First Day Cover with a cancel for Moscow inside.

Design Artist: V. Beltyukov.
Face value: 25 rubles.
Stamp size: 50×37 mm, sheet size: 120×177 mm.
Emission form: a sheet with formatted margins with 8 (2×4) stamps.
Quantity: 56 thousand each stamp (28 thousand each sheet).

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