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[Receipt for Registered Mail]

Description: Receipt for registered mail sent by Sayles & Sayles to M. McAlpine in Toyah, Texas. There is a written on the receipt in red, "Martin [..]."
Date: March 22, 1911
Creator: United States. Post Office Department.
Partner: Hardin-Simmons University Library

[Letter from I. H. Kempner to Dan Oppenheimer, November 22, 1954]

Description: Letter from I. H. Kempner to Dan Oppenheimer discussing about letter to Mr. Sanders and enclosed memo of conversation with J. C. Wilson. Also, adds on his thoughts regarding the cultivation of land in Presidio, Reeves, Ward, and Crane counties and voices his opinion on I. H. Kempner valuations as persuasive.
Date: November 22, 1954
Creator: Kempner, Isaac H. (Isaac Herbert), 1873-1967
Partner: Rosenberg Library

Spark Arrester.

Description: Patent for a new and improved spark arrester for smokestacks. This design "consists of an inverted hollow cone suspended within a hollow and flaring receiver for the sparks . . . so as to deflect the sparks against a conical annular cover to the receiver, whereby the sparks are broken and thrown against an arrester located over the hollow cone, and by which the sparks are again broken . . . and continued in that course until extinguished" (lines 7-18).
Date: August 22, 1882
Creator: Green, George
Partner: UNT Libraries Government Documents Department

Egg-Crate.

Description: Patent for "a crate in which eggs may be shipped by freight, express or parcels post...without being cracked or broken" (lines 10-14), including illustrations.
Date: June 22, 1915
Creator: Miller, Robert E.
Partner: UNT Libraries Government Documents Department
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