Original 1949 electrical trade vintage ad for CHAPMAN ELECTRIC NEUTRALIZER COMPANY.  Main office and plant was located in Portland, ME.

Manufacturers of Chapman Neutralizer. Stops Static Instantaneously! Safely! (Since 1904).

Using the cotton system for making blended yarns containing rayon, other synthetics, wool, or for making wool yarns, it is necessary to control static during the drawing process in order to get full protection and produce good work. 

Unbound from a 1949 cotton industry handbook, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro textile library.