Keulen, Gerard Hulst van. “Map 807.55.1784 A new chart of the coast of New England, Nova Scotia,
and the islands of St. John, Cape Breton, Sable, the banks of St. Peters... Amsterdam. Ven Keulen. 1784. Size, 22 3/4 x 42 3/8 inches. Scale (computed), 15.73 geographi- cal miles to 1 inch. Submap. A plan of the town of Boston. Size, 9 5/8 x 8 3/8 inches. Scale (computed), 1389 feet to 1 inch.
“Boston. Description, etc. Maps.-Nova Scotia. 52.Maps.-New ingland.52. DS.