| 1 String | 21 Repetition Lever Button | 40 Whippen Rail |
| 2 Damper Head | 22 Whippen Spoon | 41 Whippen Cushion |
| 3 Damper Felt | 23 Combination Jack Spring & Reptitiion Lever Spring | 42 Capstan Screw |
| 4 Damper Guide Felt | 24 Whippen | 43 Key Button |
| 5 Damper Wire | 25 Jack Regulating Button | 44 Balance Rail Key Pin |
| 6 Hammer | 26 Jack Regulating Screw | 45 Key |
| 7 Hammer Shank | 28 Letoff Rail | 47 Damper Lift Rail |
| 8 Drop Screw | 29 Letoff Button | 48 Back Rail |
| 9 Hammer Flange | 30 Letoff Button Punching | 49 Back Rail Cloth |
| 10 Main Action Rail | 31 Jack | 50 Key Frame |
| 12 Damper Lifter Flange | 32 Action Bracket | 51 Balance Rail |
| 13 Damper Wire Screw | 33 Damper Lever Flange | 52 Balance Rail Bearing |
| 14 Sostenuto Rod | 35 Sostenuto Tab Or Lip | 54 Front Rail Key Pin |
| 15 Backcheck | 36 Damper Lever | 55 Front Rail Punching |
| 16 Hammer Rest | 37 Damper Lever Key Cushion | 56 Front Rail |
| 17 Repetition Lever Screw | 38 Backcheck Wire | |
| 19 Repetitiion Lever Flange | 39 Whippen Flange | |
| 20 Hammer Knuckle |
| 1 String | 20 Catcher | 39 Whippen |
| 2 Damper Felt | 21 Catcher Buck Skin | 40 Sustaining Pedal Connecting Rod |
| 3 Damper Head | 22 Backcheck Felt | 41 Lower Action Rail Or Sticker Rail |
| 4 Damper Block | 23 Backcheck | 42 Sticker |
| 5 Hammer | 24 Damper Lift Rod | 43 Sticker Flange |
| 6 Damper Wire | 25 Hammer Butt Flange | 44 Sticker Tongue |
| 7 Spring Rail Felt | 26 Main Action Rail | 45 Sticker Cloth |
| 8 Spring Rail | 27 Jack | 46 Capstan Screw |
| 9 Hammer Shank | 28 Letoff Regulating Screw | 47 Back Rail Cloth |
| 10 Hammer Rail Cloth | 29 Letoff Rail | 48 Key |
| 11 Hammer Rail | 30 Letoff Button | 49 Key Lead |
| 12 Damper Lever | 31 Bridge Tape | 50 Balance Rail |
| 13 Damper Spring | 32 Letoff Button Punching | 51 Key Button |
| 14 Hammer Butt Spring | 33 Backcheck Wire | 52 Balance Rail Key Pin |
| 15 Damper Flange | 34 Damper Spoon | 53 Balance Rail Punching |
| 16 Hammer Butt Felt | 35 Jack Flange | 54 Key Frame |
| 17 Hammer Butt Bucks Skin | 36 Bridle Wire | 55 Front Rail |
| 18 Hammer Butt | 37 Jack Spring | 56 Front Rail Punching |
| 19 Catcher Shank | 38 Whippen Flange | 57 Front Rail Key Pin |