North America Canada 437 and 443 (this map

437 and 443 (this map is State 2)

" the map also provides considerable detail in other areas

and much of New Mexico

An interesting note is the post-map-printing labeling of Lebanon and Myers T (Myers Town) which appear to define the termini of the short canal between Swatara Creek and the Schuykill River

North America Canada 437 and 443 (this mapChamberlin Trimetric Projection The North America map of March 1952 includes Central America and the West Indies as well as inset maps of both the Aleutian and Diomede Islands. Of particular note is the absence of the Interstate Highway System in the United States which was yet to be built.