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Sketch of iron plate for concert grand

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Sketch of iron plate for concert grand.png Jonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper framesJonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper framesJonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper framesJonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper framesJonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper framesJonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper framesJonas Chickering’s full solid cast grand metal plateMiniaturesGrand pianoforte action with metallic action and damper frames

Sketch of iron plate for concert grand, showing general arrangement of braces, belly-bridges and system of bolts for fastening to case.

A—B. Hammer line.
1. Body of plate.
2. Bass bridge.
3. Continuous treble bridge.
4. Agraffes.
5. Capo d’astro bar.

Plate is cast in one piece and scale is overstrung.