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Date:  date unknown

Description: Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo...

Date: 1931 ca.

Description: Exterior view of the blacksmith shop at Walnut Grove farm where Cyrus Hall McCormick (1809-1884) invented and built his first reaper in 1831.

Photograph

Steel Guitar Ace

Date:  date unknown

Description: Jack Penewell of Madison, originator of the twelve string Hawaiian guitar (or so his business card says), with another musician tentatively identified as T...

Date: 1930 

Description: Still from the feature length motion picuture "Romance of the Reaper" showing a recreation of the demonstration of Cyrus McCormick's reaper of 1831. The fi...

Date: 1947-03-13 

Description: June D. (Mrs. Sheldon) Wengel serving as a model for a remote flash tripped via a photo-electric cell invented in Madison by Sheldon Wengel and Howard La C...

Date:  date unknown

Description: Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo...

Photograph

Distillation Device

Date: 1950 ca.

Description: A man sets up a cone-shaped instrument designed to distill fresh water from salt water as he leans out of small motor boat on the water.

Date: 1928 ca.

Description: Advertisement celebrating 100 years of International Harvester history. Features inset drawings of McCormick's first reaper in 1831 and "Harvester's first...

Photograph

Iowa's First Flyer

Date: 1906 

Description: The monoplane glider built and flown by Carl S. Bates of Clear Lake, Iowa. During the previous year Bates had built a bi-plane glider.

Date: 1863 ca.

Description: Sketch of John Muir's clock design.The built clock was a combination of scythes, wheels and arrows. A rough bough of burr oak was set upon a base incrusted...

Photograph

S.S. Morton Tractor

Date: 1899 

Description: Three-quarter left side view of a tractor built by S.S. Morton. The photograph is labeled, "The Predecessor of the International Line."

Date:  date unknown

Description: Rendering of a Thordarson Electical Manufacturing Company product. Chester Thordarson was a Chicago inventor and manufacturer of electical apparatus, famo...

Photograph

Tractor Prototype

Date: 1933 

Description: Three-quarter right side rear view of a tractor prototype. On the right front front side of the tractor is a sign that reads: "M'f'd by The Ohio Mfg. Co.,...

Date: 1933 

Description: Map created by International Harvester entitled "The United States as it appeared in 1831 when Cyrus Hall McCormick invented the Reaper." The map pinpoint...

Date: 1834 

Description: Press release image compiled by the International Harvester Company. The image includes "excerpts of the patent grant from the U.S. Patent Office to Cyrus...

Date: 1914-06 

Description: The Aerodome, invented by Samuel Langley, Secretary of the Smithsonian Institution, as reconstructed by Glenn Curtiss at Hammondsport.

Date: 1901 

Description: Wilbur Wright (standing, second from the right) with Edward C. Huffaker, Octave Chanute, and George Spratt in the workshed. Chanute was a special visitor f...

Date: 1947-03-13 

Description: Sheldon Wengel or Howard La Court at workbench creating a photographer's remote flash. A man is standing in the corner with his arms raised, perhaps holdin...

Date: 1849 

Description: Advertising handbill for Cyrus Hall McCormick's patent Virginia Reaper. Printed for C.H. McCormick & Co. by James J. Langdon, Chicago, Illinois.

Date:  

Description: Drawing of John Muir's invention, the student desk clock, scale 3 inches per foot. The clock lighted his lamp and fire and opened the right book for him to...

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