U.S. Highways1941-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_053_4_0000_1_3Transportation Map: This map features approval noted on October 25, 1940, and a revision on May 15, 1941, in the right-hand corner. Dimensions: 27 1/4 x 41.