The ZSD Nysa was produced in the town of Nysa, Poland, from 1958 until 1994. The Nysa like the Zuk were vans heavily based on the FSO Warszawa car, which itself was a licensed version of the Russian GAZ-M20 Pobeda.
There were 380,575 Nysa vans produced. In Poland many Nysa vans were probably chiefly used by the Militia Police to carry policeman and prisoners about, but, also used as ambulances, tow trucks, fire trucks, and converted into pick-up trucks. Vast numbers – in some years almost 70% of production – were exported to fellow Eastern-bloc countries.
Related page on the Polish Poland website: Nysa’s big brother – the squarer Zuk van.