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description

Summary

This glass reduces rather than magnifies. Cartographers often produced a final map at 50-75 percent of its draft size, and this tool allowed them to visualize how their draft line work would appear at the final size.

label_outline

Tags

cia central intelligence agency map drawing instruments intelligence maps ultra high resolution high resolution
date_range

Date

09/11/2016
create

Source

Reducing Glass
link

Link

https://www.cia.gov/
copyright

Copyright info

Public Domain

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Topics

cia central intelligence agency map drawing instruments intelligence maps ultra high resolution high resolution