The Dermott or tin case map of Washington 1797-8.

Shows block numbers and proposed government buildings.
Depths shown by soundings.
"United States Coast and Geodetic Survey Office, Washington, May 4, 1888."
Facsimile.
Original version: [1798?].
In left upper margin of some copies: 3035B price 2.00 dollars.
Includes text headed "Washington City, March 30th 1854" and texts of official documents.
LC sheets fold-lined. Copy 2 sheets halved, laminated, and mounted on cloth backing.
Available also through the Library of Congress Web site as a raster image.
2 copies
DCP