Abstract: A cabinet structure for identifying and examining objects by illuminating said objects with radiation of selected wavelengths, such as short wave ultraviolet radiation, long wave ultraviolet radiation, visible radiation, and infrared radiation is described. The cabinet structure includes a truncated pyramidal hood wherein light sources for emitting selected wavelengths of radiation are mounted on the respective sloped pyramidal sidewalls of the cabinet for illuminating a specimen mounted beneath the hood. A top surface defining the top of the truncated pyramidal hood has means thereon for mounting a camera such as a photographic camera, TV camera or the like. When it is desired to examine or photograph large documents such as oil paintings the truncated pyramidal hood is placed over the document. For smaller specimens to be examined, the hood is provided with an entrance door in one sidewall thereof through which specimens may be inserted.