Austin Photo Interpretometer (Stereoscope) (30764640432)
Summary
This device enabled 3-D viewing of stereo pairs of aerial photography. It has a height finder and scale for making linear measurements.
Tags
cia
central intelligence agency
map drawing instruments
intelligence
maps
ultra high resolution
high resolution
Date
09/11/2016
Source
Austin Photo Interpretometer (Stereoscope)
Link
Copyright info
Public Domain