The topographic maps of the United States [Reverse side of USGS maps FF-CivDef-20, FF-CivDef-21, and FF.CivDef-22], 1944 ca.
Plan
Title:
The topographic maps of the United States [Reverse side of USGS maps FF-CivDef-20, FF-CivDef-21, and FF.CivDef-22]
Creator:
USGS
Date Created:
1944 ca.
Physical Format:
20 x 17 in.
Coverage:
No specific location
Identifier:
FF-CivDef-20_reverse
Media:
Paper
Map Features:
General information about topographic maps, with a key to symbols used
Image Note:
The colors in this image may have been adjusted to enhance legibility, and may not accurately reflect the original item.
Source:
Image File(s)
FF-CivDef-20_reverse