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Large format map of Texas, which appeared in Base map at USGS Bulletin #190, A Gazetteer of Texas and Topographical Atlas of the U.S. Physical Geography of the Texas Region.
The map is on a scale of 25 miles = 1 inch and shows counties, towns, railroads, waterways; 250 foot contour lines. One of the best government published maps of Texas of the period.
Martin, J. & R. pl.50.