An informational pamphlet concerned with the K & E Color Analyzer, a spectrophotometer developed by Keuffel & Esser, Co. (K & E). K & E was a drafting instrument and supplies company founded in 1867, making it the first American company to specialize in these products. The brief pamphlet advertises the instrument, highlighting its strengths and technical specifications, describes some potential uses of the instrument, and includes a reference list of companies and academic institutions that have purchased the Color Analyzer. The catalog also provides an overview of basic spectroscopy theory, instructions for using the instrument, and a short catalog of accessories for the Color Analyzer available for purchase.