The M53/59 Praga is a Czechoslovak light anti-aircraft self-propelled gun, equipped with a twin 30-mm cannon, developed in the 1950s.
In Czechoslovakia it was known as Praga PLDvK vz. 53/59 - "Ještěrka" ("Lizard"). PLDvK stands for Protiletadlový dvojkanón, a paired anti-aircraft gun.
THE MAIN WEAPON:
O-fire from the main gun with a caliber of 30mm
I-turning the gun up
K-turning the gun down
STROKE CONTROL:
M-moving forward
N-reverse gear