The long-established DEFIL company was the only mass producer of guitars in Poland. DEFIL stands for Dolnoslaska Fabryka Instrumentow Lutniczyc, and had been in existence since 1896. In the 1970s, they started producing guitars and they offered a wide range of solid body and semi-hollow body designs. Source: Tony Bacon, The Ultimate Guitar Book.
Instruments previously built in Poland between the 1970s and 1990s.