- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Lever
- Left Thumb Rest & Octave Mechanism
- Left-Hand-&-Palm-Keys
- Left-Hand-Keys