Original 1938 sales brochure/folder/MAILER that is over-sized folded. This folder covers all GMC trucks, with captioned description of three new models:  T-145..3/4 ton; T-15..1 ton; and T-155..1 1/4 ton. Condensed specifications for every model. Illustration of the GMC Trailabout.  When completely open measures 37 by 24 1/2 inches. One side displays a poster like presentation of trucks and trailers. Really nice. The oustide pages of the mailer shows minor wear and is addressed. The inside pages are in good condition (see photos).