The reconstruction was started by Grzegorz Klimczak, but he received the help from many other people from everywhere in Poland.
From http://the.shadock.free.fr/Surviving_Polish_armoured_vehicles.pdf
This reconstruction includes many original parts recovered from various places in Poland -original armour plates, suspension parts,
gearbox etc... The tracks aren't original but come from a T-26. It is armed with an original 37mm Bofors gun (Rafał Białęcki)