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X-Ray Tube

X-Ray Tube

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Usage conditions apply
Cold cathode, three electrode glass x-ray tube with gas auto regulation (probably asbestos fibers), and a Green & Bauer cloverleaf (shamrock) logo on the cathode stem. This may be an example of the Mascot model. Price when new, $27.
Henry Green (1860-1914) was an immigrant from England who moved to Hartford, Ct., in 1888 and began making light bulbs and Crookes tubes. After learning of Roentgen’s 1895 discovery of x-rays, Green made an x-ray tube—probably the first such in the United States. John L. Bauer (d. 1906) was an immigrant from Germany who was working with Green by 189y. Both men died of radiation burns.
Ref: Henry Green, Clover Leaf Tube Pointers (Hartford: Green & Bauer, n.d.).
“BURNED BY X-RAYS, NOW FIND RELIEF,” Hartford Courant (Dec. 9, 1904), p. 5.
“X-RAYS CAUSE DEATH OF HENRY GREEN,” Hartford Courant (March 15, 1914), p. 3.
Currently not on view
Object Name
X-Ray Tube
tube, x-ray
Green & Bauer
place made
United States: Connecticut, Hartford
Physical Description
glass (overall material)
metal (overall material)
metal, copper (overall material)
aspestos (overall material)
average spatial: 20 cm x 14 cm x 56 cm; 7 7/8 in x 5 1/2 in x 22 1/16 in
ID Number
accession number
catalog number
Credit Line
Dr. and Mrs. J. A. Saffir
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History
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