Early 20th Century Steam Engine Demonstrator work lamp 811 gas pump nozzle likely

811 gas pump nozzle likely originated during the 1950s

Extended this lamp measures 45" in height

Passengers on trains who were facing each other were given these to place on their laps to form a table between them for food

The lathe (including wooden base) measures 24" long x 9" wide x 8" high

Early 20th Century Steam Engine Demonstrator work lamp 811 gas pump nozzle likelyc. 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