One of thousands of 4- X 6 foot relief models made by Aero for the armed forces is seen here just after removal from the plaster mold. In: Wilson, Don C. 1949. “Production of Plastic Relief Maps” in Surveying and Mapping, Vol. IX, no. 3, pp. 183-186.
Photo Date: 1945 Ca.
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| Added On | 16th October 2015 |
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