Thing is I believe it was made quite a long time after the end of Communism in Czechslovakia, although I could be wrong. Even if it was, then why make it in .22 when .177 pellets are cheaper?
I have just discovered that it is 'auto-cocking'. This means that after putting a gas bulb in and the initial cocking action against the hammer spring, the pistol re-cocks itself after each shot. All one has to do is reload a pellet in the loading gate. Very nice!