The PWS-1 was the first design of the Podlaska Wytwórnia Samolotów (Podlasie Aircraft Factory), and the second aircraft designed and built in Poland, after the CWL WZ-X.
The PWS-4 (PWS - Podlaska Wytwórnia Samolotów - Podlasie Aircraft Factory) was a prototype Polish sports aircraft, developed in 1928 by Podlaska Wytwórnia Samolotów.
The PWS-50,(PWS - Podlaska Wytwórnia Samolotów - Podlasie Aircraft Factory), was a prototype Polish single-engine mid-wing monoplane sports aircraft of 1930, constructed by Podlaska Wytwórnia Samolotów.
It crashed during the 4th Winter Air Contest of Lublin and Podlasie in 2-4 February 1934, flown by A. Uszacki, and was broken up.
Tajna Armia Polska, TAP (Secret Polish Army) was a Resistance movement founded in November 1939 in German-occupied Poland, which was active in the areas of the Warsaw, Podlasie, Kielce and Lublin Voivodships.