Hand col., copper engraving; 36.5 x 48 cm. on sheet 51.5 x 64 cm. ;Detached folded plate from Willem Janszoon and Joan Blaeu's : Theatrum orbis terrarum sive Atlas novus. Amsterdam, 1635-1655. ;Shows population centers and physical features but no administrative boundaries. ;Relief, forests, and major centers shown pictorially. ;Includes elaborate col. title cartouche in lower right with bar scale beneath it. ;Has latitudinal graduations only. ;Dutch text (ending with an ill.) on verso entitled: Het vorstendom Sevenbergen, ofte Trans-Sylvania. Above title, to the right: "41." ;Additional description available in J. Eugene Horvath's: A Canadian collection of Hungarica [CCH]. v.2, Maps & city views 1493-1817. (Library has book) ;Map from the Horvath Collection [CCH-41.]