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Rotary Engine.

Description: Patent for a new and improved rotary engine, including instructions and illustrations.
Date: October 10, 1899
Creator: James, William Francis
Partner: UNT Libraries Government Documents Department


Description: Patent for an improved life boat that "consists principally of a central closed hull equipped with propelling machinery, and floats extending on the sides of the said hull and rigidly secured thereto, to support the hull in position." (Lines 12-16) Includes instructions and illustrations.
Date: September 1, 1896
Creator: James, William F.
Partner: UNT Libraries Government Documents Department

[Transcript of Letter to George L. Hammeken, June 9, 1848]

Description: Copy of transcript for a letter to George L. Hammeken, in which the sender describes the provenance of the seven-hundred dollars that were originally enclosed in the letter, and provides a list of items that Mrs. Perry wants Hammeken to purchase and/or have made, including a wax impression of Gen. Austin's seal which Mrs. Perry wants to have engraved on the items she has requested. Lastly, there are further directions for any remaining sum.
Date: June 9, 1848
Partner: The Dolph Briscoe Center for American History