Notes: | Issued in quadrangles 1⁰ of latitude by 1⁰30' of longitude. "Transverse Mercator projection." Relief shown variously by contours, form lines, and shading; ocean depth curves in fathoms. Classes of roads, railroads, towns by size, boundaries, vegetation types, etc., indicated by symbols. Each sheet includes "Glossary," "Location diagram," and "Reliability diagram." Some sheets have through route maps of cities on versos. Accompanied by index map on sheet 27 x 41 cm. Standard map series designation: Series U502.
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