[A Map Taken From a Mathematics Work Book]
Description:
A Mercator Projection of a map including Austin, San Antonio, Laredo, Victoria, and Corpus Christi on a grid with every line being 15 minutes.The magnetic variation is 10 degrees east, and the scale is 1:2,027,520.
Date:
unknown
Item Type:
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Partner:
National WASP WWII Museum