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Surface area coefficients for airship envelopes

Description: "In naval architecture, it is customary to determine the wetted surface of a ship by means of some formula which involves the principal dimensions of the design and suitable constants. These formulas of naval architecture may be extended and applied to the calculation of the surface area of airship envelopes by the use of new values of the constants determined for this purpose. Surface area coefficients were calculated from the actual dimensions, surfaces, and volumes of 52 streamline bodies, which form a series covering the entire range of shapes used in the present aeronautical practice" (p. 1).
Date: February 1922
Creator: Diehl, W. S.
Partner: UNT Libraries Government Documents Department

[Envelope Fragment, August 5, 1853]

Description: Envelope fragment postmarked Saco, ME. August 5, 1853. The right side of the front of the envelope, where the address would have appeared, had been torn away. The envelope was received on August 16, 1853 according to the written note at the bottom left corner. Part of a red seal is still on the back.
Date: August 5, 1853
Partner: UNT Libraries Special Collections

[Envelope addressed to Charles B. Moore, April 20, 1895]

Description: Envelope addressed to Mr. Charles B. Moore in Melissa, Collin County, Texas. It was sent by Will McGee and received on April 24, 1895, according to the hand-written note in the bottom left corner. It is postmarked Gallatin, Tenn. APR 20, 1895. The top right corner, where the stamp would have been, has been cut away.
Date: April 20, 1895
Creator: McGee, Will
Partner: UNT Libraries Special Collections

[Envelope addressed to Miss Linnet Moore, October 7, 1897]

Description: Envelope addressed to Miss Linnet Moore in Chambersville, Collin County, Texas. It was sent by Birdie McGee and read by Linnet on October 13, 1987. It is postmarked Gallatin, Tenn. October 7, 1897. The right side of the envelope is torn, and the top right corner, where the stamp would have been, had been cut away. There is some writing in pencil on the back and another postmark from McKinney, Texas on October 9, 1897.
Date: October 7, 1897
Creator: McGee, Birdie
Partner: UNT Libraries Special Collections

[Envelope addressed to Mrs. Claude D. White, October 24, 1916]

Description: Envelope addressed to Mrs. Claude D. White in Fort Worth, Texas. It is from Hogin & McKinley General Insurance and Long Time Loans in Gallatin, Tennessee. It is postmarked Gallatin, Tenn. October 24, 1916. The top right corner, where the stamp would have been, has been torn off. "R7-Box 52" is written in the bottom left corner.
Date: October 24, 1915
Partner: UNT Libraries Special Collections

[Envelope to Joe from Lapeer County Press]

Description: Narrative by Junebug Clark: Envelope is from December 30, 1982, Farmington, Michigan. Envelope was used to return a poem by Joe Clark, HBSS from the Lapeer County Press in Lapeer, Michigan. Joe had a weekly photo and poem or witticism in the Lapeer County Press that ran for maybe 15 years or more. Frank and Gladys Cooper, writers for the Press were good family friends who would drop by and pick out a pile of photos. The Cooper's created and managed the column.
Date: December 30, 1982
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Envelope from L. B. Price Mercantile Co. to Linnet White, August 8, 1917]

Description: Envelope from L. B. Price Mercantile Co. at the Price Building in Fort Worth, Texas to Linnet White, addressed as Mrs. Claude D. White in Manitou, Colorado. It is postmarked Fort Worth, Texas August 8, 1917. The date August 15, 1917 is also stamped on the front. The right edge of the envelope has been torn.
Date: August 8, 1917
Creator: L. B. Price Mercantile Co.
Partner: UNT Libraries Special Collections

[Envelope from M. C. Elliott to Linnet White, August 28, 1917]

Description: Envelope from M. C. Elliott at 3335 [Montgall] Ave., Kansas City, Missouri to Linnet White, addressed as Mrs. Claude D. White in Denver, Colorado. It is postmarked Kansas City, Missouri August 17, 1917, and the date Aug 28 is also stamped on the front. The return address is written on the back, along with some other handwritten notes. The right edge of the envelope has been torn.
Date: August 17, 1917
Creator: Elliott, M. C.
Partner: UNT Libraries Special Collections

[Envelope]

Description: The following document is an envelope from the Charles B. Moore Collection. The envelop has a handwritten name and a location on the front below a printed name. It says "Gateman McKinney, Texas" below the name S. J. Hanson. The back of the envelope has financial calculation. The document is undated.
Date: unknown
Partner: UNT Libraries Special Collections