----------------------------Original message---------------------------- Keith -- The Rare Books and Manuscripts Div. of NYPL (212-930-0801) has an atlas published by W. Holtrop in Amsterdam, thought to be from the 1790s. It includes maps engraved in the 1780s. It is a small atlas, 14 cm. high. The classmark of the atlas is *KF 179- Holtrop. (I haven't looked at it to see if it contains your map.) Holtrop's dates are given as 1751-1835 in NYPL's retrospective catalog. Nancy Kandoian 930-0588 [log in to unmask]