Mid-19th-century copy of the large Ratzer plan, the greatest 18th-century map of New York City.
Folding lithographed plan of New York City, based on the 1770 engraved map by Bernard Ratzer. This copy appeared in an 1854 edition from Valentine's Manual.
The original Ratzer map routinely sells in the low hundreds of thousands of dollars. The last complete copy offered publicly was the Ford Foundation example, varnished and laid on board, which made more than $100,000 at auction.
Several mostly decorative changes have been made to the image by D. T. Valentine.
The map shows the city from roughly around Kip's Bay in Manhattan, to below Red Hook in Brooklyn.