Leybourn's plane table. In: "Historical Account of the Plane Table"
by A. M. Harrison, 1875. This is a handwritten unpublished manuscript.
Library Call Number TA571 .H37 1875
Image ID: libr0039, Treasures of the NOAA Library Collection
Photographer: Archival Photograph by Mr. Sean Linehan, NOS, NGS
• High Resolution Photo Available