Ruch -meaning 'traffic' in Polish- was the name of a range of 1/72nd scale plastic models made in Poland in the 1970s and early 1980s. The range primarily consisted of Polish cars (Syrena, Warszawa, Fiat 125p), vans (Nysa, Zuk), trucks (Star 28 und C-28) and buses (Jelcz, Sanok). Other Eastern European cars (Moskvitch 408, Wartburg 353) were modelled as well.
In addition to the models designed by the company itself, Ruch also produced plastic copies of Matchbox models. A re-edition of the Jelcz bus model was released in the early 2000s by a club of Polish bus enthusiasts (Klub Milosników Komunikacji Miejskiej in Warsaw). Source: modelcars.mbeck.ch
What's it worth? Take a look at this Ruch price guide: sold listings for a value indication.