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A lamp unit assembly with ultraviolet bulb, donated by Laurence Selling, M.D. The precise use is unknown, but the donor card notes that the unit "resembles photogs flash unit." Together, the assembly is 23 cm in length. The E.S.I. metal lamp unit is fitted with an "on" button, and the socket end is fitted with negative and positive terminals for wire insertion. The cobalt blue lamp has no voltage noted, but a partial paper label suggests that the manufacturer was Sunbeam.
ca. 1940's-1960's
Medical Museum Collection, Box 103
Digital photograph of a cobalt blue ultraviolet blub and a lamp unit assembly, both set on a gray counter. A typed donor card can be seen, tied to the metal electrical unit. A ruler has been placed in the foreground for size comparison.

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