SIC744270: The Federal Building At The Century Of Progress / Bridgeman Images

SIC744473: Hedge Trimmers / Bridgeman Images

SIC744476: Cotton Harvesters / Bridgeman Images

SIC744477: Bean And Clover Harvester / Bridgeman Images

SIC829862: A Huseby Safety Bicycle / Bridgeman Images

SIC829878: Front wheel assembly of a Velocipede early bicycle, c.1875 (photo), American School, (19th century) / Bridgeman Images

SIC829885: A Late 1800s High Wheel Bicycle / Bridgeman Images

SIC829886: A Late 1800s High Wheel Bicycle / Bridgeman Images

SIC829887: A High Wheel Bicycle / Bridgeman Images

SIC829897: A Bronze Plaque For Architecture / Bridgeman Images

SIC829899: A Bronze Plaque For Communication / Bridgeman Images

SIC829901: A Bronze Plaque For Graphic Arts / Bridgeman Images

SIC829911: The Caryatids of the Museum Of Science And Industry, Chicago, Illinois (photo) / Bridgeman Images

SIC829919: Mine Entrance With Time Clock And Safety Notice / Bridgeman Images

SIC829933: A Museum Employee Cleaning One Of The Caryatid On The Façade Of The Museum Of Science And Industry / Bridgeman Images

SIC829947: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829950: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829956: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829957: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829959: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829960: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829961: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829975: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829983: The Great Train Story Exhibit At The Museum Of Science And Industry / Bridgeman Images

SIC829985: The 1917 Curtiss JN-4D 'Jenny' Airplane / Bridgeman Images

SIC829986: Two Boys Pose With HMS Pinafore Deck Painting, Chicago Public Schools Art Fair / Bridgeman Images

SIC829993: A Young Boy Working On An Art Piece While His Teacher Looks On, Chicago Public Schools Art Fair / Bridgeman Images

SIC829995: A Man In A Lab Coat Talks To Children About Radiation While Holding A White Rat, AEC Life Science Radiation Lab, c.1970 (b/w photo), American Photographer, (20th century) / Bridgeman Images

SIC830001: A U.S. Navy Hellcat Fighter Aircraft Landing On The Deck Of A Carrier / Bridgeman Images

SIC830006: A U.S. Navy Fighter 'Corsair' In Flight, c.1940s (b/w photo), American Photographer, (20th century) / Bridgeman Images

SIC830010: An Assortment Of Aircraft On Display At Museum Of Science And Industry / Bridgeman Images

SIC830013: The Texaco No. 13 Plane On Display At Museum Of Science And Industry / Bridgeman Images

SIC830016: A Man Wax Concert Music Cylinders On An Edison Phonograph, Museum Of Science And Industry / Bridgeman Images

SIC830021: A Young Iranian Woman In Native Dress / Bridgeman Images

SIC830023: Two Young Women Display An Example Of Persian Embroidery / Bridgeman Images

SIC830027: Two Young Iranians In Native Dress / Bridgeman Images