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