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File:Britannica Pianoforte Cristofori Escapement Action.png
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Fil:Britannica Pianoforte Cristofori Escapement Action.png
Description
Britannica
Pianoforte
Cristofori
Escapement
Action
.
png
English:
Cristofori's
Escapement
Action
, 1720. Restored in 1875 by Cesare Ponsicchi.