The AH-IV was a Czechoslovak-designed export armored fighting vehicle, classed as either a tankette or light tank, used by Romania during World War II, but having also been acquired by neutral Sweden
Stridsvagn m/37
…Stridsvagn m/37 (Strv m/37) was a Swedish-built version of the Czechoslovak ČKD AH-IV tankette. The AH-IV was popular with Romania and Iran, and after a successful demonstration to Swedish authorities, during winter conditions in the…
The original AH-IV prototype. It was different compared to the production vehicles of Romania, Sweden, etc., which had bigger turrets among other modifications.