X-ray machine developed in 1904 by Albert B. Koett, a founder of the Kelley-Koett Manufacturing Co. in Covington, Ky. Its 12-inch spark was particularly large for the time. An inscription reads "Grosse Flamme."
X-ray machine with a “Waite & Bartlett X-Ray Mfg Co. Inc. / Cleveland, Ohio / Serial 266” inscription. The Waite & Bartlett Mfg. Co., of New York, was in business by 1885, making and selling electrical communications and medical-electrical apparatus.