Early 20th Century Steam Engine Demonstrator work lamp This product is 17" L

This product is 17" L x 3

and should be used for display

811 gas pump nozzle likely originated during the 1950s

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

Extended this lamp measures 45" in height

Early 20th Century Steam Engine Demonstrator work lamp This product is 17" Lc. 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