Documents, photographs, witness statements, films and all sources systematically collected by Porta Polonica are digitized and recorded in a database.
Flag of the Polish-Catholic miners´ association of Eving, front
Flag of the Polish-Catholic miners´ association of Eving (Dortmund) from 1898, with a cross, mallets and iron on the front and the inscription: "Tow. Katolickie polskich Górników pod opieką św. Barbar...
Strips of synthetic material, metal, W = 1250 cm, H = 1300 cm, D = 3000 cm. Kunstkirche Christ-König, Bochum, Danuta Karsten exhibition: 100 Kilometres.