Category:Square-piano actions

Media in category "Square-piano actions"

The following 4 files are in this category, out of 4 total.

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  Britannica Pianoforte Action Based on German Escapement Principle.png 862 × 238; 5 KB
  
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  Britannica Pianoforte German Square Action 1783.png 947 × 380; 12 KB
  
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  Britannica Pianoforte Zumpe Square Piano Action.png 929 × 333; 11 KB
  
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  Zumpe english single square action.svg 1,224 × 484; 44 KB