Coinola Pumps with Vertical Bellows

Coinola vertical bellows pump with the hinge end of the bellows facing down.

(Photograph courtesy of Art Reblitz)

Vertical bellows pump with hinges facing down, installed in Coinola X-3 #113135.
Coinola vertical bellows pump with the hinge end of the bellows facing up.

(From 1915 Coinola advertisements in music trade magazines)

Vertical bellows pump with hinges facing up, from a 1915 Coinola advertisement.
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