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Summary
OSS cartographers used this English-made device to reproduce, enlarge, or reduce a map to scale. One arm traced the original map and the other arm held a pen or pencil to draw a scaled copy.
Tags
cia
central intelligence agency
pantographs instrument
intelligence
maps
ultra high resolution
high resolution
musical instruments
Date
09/11/2016
Source
Stanley Improved Pantograph
Link
Copyright info
Public Domain