During his research for a new book about the mapping of North America, due for publication this summer, the author has unearthed a number of unusual items, not least this unrecorded collection of maps of the North American continent.

While doing some research for my proposed book at the Library of Congress Geography and Map Division in Washington DC, James Flatness brought to my attention an unidentified map of the western half of South America. This copperplate engraved map had been in the Geography and Map Division of the Library since at least 1965.