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The Legend of the Cannon from Extracts of Letters of Mr. Fred J. Peters, Antiquarian, Plandome, Long Island
Table No. 1: Hydrolysis of oils and fats using hydrochloric acid
Papers of indenture signed by Moses and Mary Coates
Theatre Projection Television - Pt. III (ca. 1941)
Page from Joseph Elkinton's 1831 ledger
Videotape Recording & Playback (1950s)
Modified landing craft
Early Experimental Television (ca. 1927 - 1937)
Stetson hospital
Francis G. du Pont telescope and observatory
Copy of shipping receipt for the Philadelphia Quartz Company from the Pennsylvania Railroad's freight station
Copy of directions for using Joseph S. and Thomas Elkinton's Laundry Soap
Tensile Properties of Boiler Plate at Elevated Temperatures
Television Receivers, Monochrome - Pt. 1 (ca. 1928-1938)
Television Transmission, Early Technology (ca. 1939 - 1946)
Lard boiled with hydrochloric acid and 1% of the substances
Table No. 2: Hydrolysis of oils and fats using hydrochloric acid
Dentist's office
Copy of a check paid to cash written by Joseph Elkinton
Monoglycerides, diglycerides, triglycerides molecular formulas
Theatre Projection Television - Pt. I (1937)
Tubes, Orthicon TV Camera (ca. 1937-1943)
First heat run from open hearth furnace
Television Transmission, Early Scanning Standards (ca. 1928-1940)
The Coatesville Declaration plaque

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