1930. Iowa. State Planning Board and Iowa. Highway Commission. 1 map black line ; 85 x 114 cm Road information from Iowa Highway Commission as of January 1, 1937. Iowa. State Planning Board.
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1930. United States. Constitution Sesquicentennial Commission. 18 maps Scales differ. United States Constitution Sesquicentennial Commission.
1930. W.W. Hixson & Co. Extent: 1 map Notes: Page from: Plat book of Charlevoix County, Michigan. The Company.
1930. W.W. Hixson & Co. Extent: 1 map Notes: Page from: Plat book of Newaygo County, Michigan Scale approximately 1:51,000. Published by W.W. Hixson & Co.
1930. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Department of Agriculture and United States. Agricultural Stabilization and Conservation Service.
1930. W.W. Hixson & Co. Extent: 1 map Notes: Page from: Plat book of Charlevoix County, Michigan. The Company.
1930. Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs... United States. Department of Agriculture and United States. Agricultural Stabilization and Conservation Service.
1930. Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs... United States. Department of Agriculture and United States. Agricultural Stabilization and Conservation Service.
1930. Geological Survey (U.S.). Contour interval 10 feet;"Surveyed in 1926-1927.";Relief shown by contours and spot heights.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1930. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1927.";Relief shown by contours and spot heights.;1 map, colored;45 x 34 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).