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The map is presented in a cream-colored mat with a mylar window. The mat that measures 30" wide x 27.5" high and the sheet measures 24.38 " wide x 21" high. There is a central vertical fold, as issued. There is some spotting in the margins of the sheet, but not affecting the map. There is minimal color offset in the upper portions of the map from the opposite side, resulting from the map having been folded in the atlas for centuries. The map has full margins and is hinged with archival material at the top only.
Johannes Janssonius, also known as Jan Jansson, was born 1588 in Arnhem, Netherlands. He grew up in the book business. He married the daughter of the famous Dutch cartographer Jodocus Hondius and became a book publisher in Amsterdam. He later went into the book and map publishing business with his brother-in-law Henricus Hondius. In addition to their own maps, they published several editions of the famous Mercator/Hondius atlas. Jansson was responsible for expanding their company, publishing several world and city atlases in competition with the Blaeu publishing family, also in Amsterdam. Jansson's most prominent works include the "Atlas Novus" (1638), the "Atlas Majoris Appendix" (1639) and his huge eleven volume "Atlas Major" (1647).
