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Soviet Union 1936-1955 Soviet Union
2P27 — NATO designation AT-1 Snapper
AT-1 (USSR) — Soviet self-propelled gun based on the T-26.
UK United Kingdom
Medium Tank, A/T 1 (* / ** / ***) — British amphibious tank developed during the interwar period.
A.T.1 — British assault tank prototype by Nuffield.
USA 1960 United States of America
AT-1 — American self-propelled recoilless rifle carrier design based on the T55 Utility Vehicle.
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