Harrison, William, 1774-1 map : hand col. 40 x 50 cm.Relief shown pictorially.Prime meridians: Philadelphia and London.Map shows Jefferson county and Lewis county, formed in 1805, but not Broome, Allegany or Madison county, formed in 1806.In upper right: 12.JPEGG 3800 1805 .L400850138039015091910748engPublicThe state of New York : compiled from the best authoritiesMapsNew Yorkbetween 1795 and 1867University of Michigan