All come in vinyl sleeves in three ring binder tabbed and catalogued by maker w/individual index cards for each company noting printing variations. Company names and card count are : American Colortype- 116 including six from Japanese series, Arena- 43, Chicago Architectural Photo- 31, C.T. Colortone- 90 including three cartoon, C.T. Gravure- 1, Deeptone- 52, Gerson Bros.- 27, Process Photo Studios- 7, Illinois Photogravure Co.- 4, J. O. Stoll- 5, and 54 trade cards for various companies. Some cards are b/w , most are full color. Buildings and scenes include: Fort Dearborn, Sinclair w/dinosaur, Travel, Lama Temple, Transportation Row, Enchanted Island, Sky Ride, Midget Island, Giant Havoline Thermometer, A & P Carnival and much more. A few have somewhat similar image of same building or scene but by a different maker. Some are postally used w/a few cancellation marks here and there. Overall VF/Exc. A huge instant collection highlighting major and minor attractions.