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Title: Original copies of enlargements of photographs of spark spec [Go to resource]
Description: Original copies of enlargements of photographs of spark spectra: two copies each of plates I and II and three copies of plate III, mounted, 26.5" x 38.5" License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1914-320 Go to resource More Like this...
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