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Glashtte Fritz Heckert in Petersdorf. de Glashtte Fritz Heckert in Petersdorf vermutlich Ende des Jh Postkarte Museum Karkonoskie in Jelenia Gra pressglaskorrespondenz de pdf Tost Renate eingescannt old work Cczero Piechowice Glass factories Postcards of Poland History of Glassmaking
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