original 12-page sales brochure for the Standard Twin Convertible Garden & Small Farm Tractor sold by the Standard Engine Company of Minneapolis, New York & Philadelphia. Well illustrated with specs and attachments, it has testimonials dated 1940  & 1941.  It measures 6x9" and is in very good condition. Covers and some inside pages have minor discoloration as shown.  Will ship well protected in large envelope via USPS media mail.