it is now thought to have been the result of a collaboration, probably involving Franchoijs Visscher and Isaack Gilsemans, who took part in both of Tasman's voyages. Whether the map was produced in 1644 is also subject to debate, as a VOC company report in December 1644 suggested that at that time no maps showing Tasman's voyages were yet complete. In 1943, a mosaic version of the map, composed of coloured brass and marble, was inlaid into the vestibule floor of the Mitchell Library in Sydney. The work was commissioned by the Principal Librarian William Ifould, and completed by the Melocco Brothers of Annandale, who also worked on ANZAC War Memorial in Hyde Park and the crypt at St Mary's Cathedral, Sydney. See also Dieppe maps Willem Janszoon Janszoon voyage of 1605–06 Theory of Portuguese discovery of Australia References Sources Edward Duyker (ed.) The Discovery of Tasmania: Journal Extracts from the Expeditions of Abel Janszoon Tasman and Marc-Joseph Marion Dufresne 1642 & 1772, St David's Park Publishing/Tasmanian Government Printing Office, Hobart, 1992, pp. 106, . External links 17th-century Dutch explorers 1603 births 1659 deaths Dutch explorers of the Pacific European exploration of Australia Explorers of Australia Explorers of New Zealand Explorers of Tasmania Maritime exploration of Australia Maritime history of the Dutch East India Company People from Grootegast Sailors on ships of the Dutch East India Company Tasman Sea Early modern Netherlandish cartography