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Dave Thomas | all galleries >> Out and About in Southeastern PA >> Philadelphia Scenes >> Wanamaker Organ > Regulator
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Regulator
25-JUN-2011

Regulator

Weighted bellows mechanism that maintains a steady wind pressure.

Canon PowerShot A80
(A7539) 1/60s f/2.8 at 7.8mm full exif

other sizes: small medium original