1927. United States. Bureau of Public Roads. Data corrected to Dec. 31, 1927. sheets 56 x 79 centimeters Scale 1:500,000; 1 inch = 7.891 miles General Map Collection. Bureau of Public Roads (Washington, D.C).
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1927. United States. Bureau of Public Roads. Shows various types of federal roads, national forests, parks, monuments and military reservations. Pavement types shown by letters.; "Data correct... Bureau of Public Roads (Washington, D.C).
1927. United States. Bureau of Public Roads. Shows various types of federal roads. Pavement types shown by letters.; "Data corrected to Dec. 31, 1927." 78 x 137 centimeters, sheets 79 x 55 cen... Bureau of Public Roads (Washington, D.C).
1927. United States. Bureau of Public Roads. Base map from U.S. Geological Survey State Map.; "Published in accordance with Act of Congress approved Nov. 9, 1921, creating the Federal Aid High... Bureau of Public Roads (Washington, D.C).
1927. United States. Bureau of Public Roads. Eastern sheet Includes inset continuation of northern Kentucky counties: Boone, Kenton and Campbell.; "Data corrected to Jan. 31, 1927."; "Approved... Bureau of Public Roads (Washington, D.C).
1927. United States. Bureau of Public Roads. Eastern sheet Includes inset continuation of northern Kentucky counties: Boone, Kenton and Campbell.; "Data corrected to Jan. 31, 1927."; "Approved... Bureau of Public Roads (Washington, D.C).