Documents, photographs, witness statements, films and all sources systematically collected by Porta Polonica are digitized and recorded in a database.
Envelope with two special cancellations on the occasion of a conference in Olesno
With the inscription: In honour of Janina Kłopocka - the citizens of the town of Olesno. With a stamp commemorating the 60th annual conference of the Union of Poles in Germany.
In the exhibition by Janina Kłopocka in Opole on the occasion of the celebrations to mark the 50th anniversary of the founding of the Union of Poles in Germany.
The stage set with the Chapel of the Joyful Mother of God, the "Rodło" sign and the lime leaf as a symbol of Polish youth in Germany was designed by Janina Kłopocka.