Pilsudski "Tank"
Model by CT Ertz

The Pilsudski tank was an improvised armoured car built on a truck chassis in 1918-19 to support Polish forces fighting Ukrainian forces over the city of Lviv (Lwow) in the Western Ukraine. Named for Poland's leader, Marshal Pilsudski, the vehicle featured gun ports rather than emplaced weapons. As both sides used whatever former Russian, Austro-Hungarian, German, or Western weapons they could get their hands on, it is lost to history just exactly what guns were fired from inside the Pilsudski's hull.

 Pilsudski "Tank" - Polish improvised armoured car 1919