File:Pneumatic piano.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	06:31, 11 February 2007		964 × 1,571 (647 KB)	SEWilco	{{Information \|Description=Sectional illustration of player piano interior action \|Source=Regulation and Repair of Piano and Player Mechanism together with Tuning as Science and Art \|Date=1909 \|Author=William Braid White \|Permission=Copyright 1909 by Edwa

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