Plage i Laśkiewicz (Plage & Laśkiewicz) was the first Polish aerospace manufacturer, located in Lublin and manufacturing aircraft under Lublin name. Full name was: Zakłady Mechaniczne E. Plage i T. Laśkiewicz - Mechanical Works E. Plage & T. Laśkiewicz. The factory produced aircraft between 1920 and 1935, when it was nationalized as the LWS.
Plage i Laśkiewicz first was a mechanical workshop and steam boiler producer, but in 1920 it started producing aircraft, as the first works in independent Poland. On February 17, 1920, the Polish government ordered a licence production of Italian fighters Ansaldo A.1 Balilla and light bombers Ansaldo A.300 in Plage & Laśkiewicz. The first Polish A.300 was flown on June 14, 1921. However, due to lack of experience, a quality of produced aircraft was low, and there were numerous crashes. As a result, the order was limited to 70 A.300 and 50 A.1 only, produced by 1924.
Despite of unsuccessful beginning, the factory gained experience, and there were no major problems with future aircraft series. In 1924, the Polish government ordered a licence production of French light bombers Potez XV, and in 1925-1926, there were built 100 of them in Plage & Laśkiewicz. In 1928-1931 the works produced 150 of more modern Potez 25. In 1929-1930 the works produced 11 passenger planes Fokker F-VIIb/3m on Fokker licence, and 20 of own Fokker F-VIIb/3m bomber modification.
In the mid-1920s the factory management was changed, and the main designer became Jerzy Rudlicki. Then, apart from licence production, the works started to produce own aircraft, under Lublin name, designated "R" for Rudlicki.