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What the heck is this?

Doublebarrel

Member
Joined
Jun 21, 2022
Messages
13
Anyone have a clue as to what the purpose is of this contraption?
 

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WisJim

Well-known member
Joined
Dec 20, 2010
Messages
2,283
Location
Menomonie, WI
Old Man Roger is right. I found it in my 1922 Central Scientific Supply catalog. It's missing the base of the pump, including the circular glass plate that would serve as a base for a bell jar to sit on when doing experiments requiring a vacuum environment.IMG_20220624_181739919 (1).jpg
 
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