HECTOGRAPH
Source: 567
Hec″to‐graph (?), n. [[Gr. � hundred + -graph.]] A contrivance for multiple copying, by means of a surface of gelatin softened with glycerin. [Written also hectograph.]
Source: 567
Hec″to‐graph (?), n. [[Gr. � hundred + -graph.]] A contrivance for multiple copying, by means of a surface of gelatin softened with glycerin. [Written also hectograph.]