Incoming registered cover from POLAND franked with 1937 4 x 25gr state blue (SG 331) tied by KOLOMYJA cds's with boxed registration marking on alongside and currency control cachet. Addressed to 'Senior Haliuatiuk Semen, Carmen del Parana, Rep Paraguay'. (A member of Colonia Fram which was a settlement of Polish, Czech & Hungarian Jews fleeing persecution in Europe). ASUNCION transit cds on reverse and fine CARMEN DEL PARANA arrival cds on front.