Grand pianoforte action with metallic action and damper frames, sostenuto pedal device and hammer swinging soft pedal attachment.

22. Sostenuto pedal-rod.
23. Attachment to damper-lever engaging with sostenuto pedal-rod.
24. Metallic action and damper-brackets.
25. Hammer swing-rail and cushion.
26. Hammer swing-rail rod.
27. Hammer swing-rail lifter.
28. Lifter-rod.
29. Lost motion compensating levers.
30. Lost motion compensating levers.