polish publications
Shatalin Igor - Polish Orts 1608-1684 including Georg Wilhelm orts 1621-1640, Gustav II Adolph orts 1628-1631, Carl X Gustav orts 1656-1658, Lviv 2021, ISBN 9786178055103, Piece No. 129
302 pages A4 size, hardcover, latest numbered edition of a specialized study of Polish orts of the 17th century, including the orts of Jan Kazimierz