Advertisers Gothic font (Monotype Imaging library) is available in OpenType, TrueType, PostScript (Type1) formats for PC and Mac.
You can buy and download the font online. Click on the font picture to see more detailed font sample.
Advertisers Gothic Light, from a volume of headline fonts, was designed by Robert Wiebking in 1917.
Wiebking was a skilled type engraver from Chicago who created his own pantographic machine, used to cut punches drawn by other successful type designers, including Frederic Goudy.