Midwestern United States, Showing Power Grid for Oklahoma and Surrounding States1943-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_053_4_0000_1_68Create a concise and logical summary using the title from the TITLE column and the text in the summary: This is a coverage map by the Federal Power Commission, serving as Exhibit H in the Prospectus: U.S. Navy Hospital at Ponca City, Oklahoma. It was removed from the Elmer Thomas Collection's Outsized Materials in the Ponca City (1943) Projects Files. Dimensions: 17 1/8 x 21 1/2.