Early 20th Century Steam Engine Demonstrator work lamp This pressed wood display piece

This pressed wood display piece showcases the development of barbed wire throughout the years

This piece was used at the University of Wisconsin for an undetermined amount of time as noted by the plaque screwed into the upper left corner

JM - 090722 - 104970

This product is 17" L x 3

811 gas pump nozzle likely originated during the 1950s

Early 20th Century Steam Engine Demonstrator work lamp This pressed wood display piecec. 1900s; L. E. Knott Apparatus Co. Boston Antique piston cutaway demonstrator created by Knott Apparatus Co., a scientific apparatus manufacturing company. This piece features, as the name would suggest, a cutaway model showing the inner workings of the piston and operates as the actual product would. It comes mounted on a wooden plank for ease of display. 9" W x 6" D x 6" H (with wooden mount) Please refer to photos regarding condition. For more