| Hartmann (French) Tuning Fork Frequency C¹ 256 Stainless Steel | 05055445967840 | |
| Hartmann (French) Tuning Fork Frequency C 128 Stainless Steel | 05055445967833 | |
| Hartmann (French) Tuning Fork Frequency C? 16 Stainless Steel | 05055445967802 | |
| Hartmann (French) Tuning Fork Frequency C? 32 Stainless Steel | 05055445967819 | |
| Hartmann (French) Tuning Fork Frequency C 64 Stainless Steel | 05055445967826 | |
| Hartmann Tuning Fork Frequency C1 256 Stainless Steel | 05055445967758 | |
| Hartmann Tuning Fork Frequency C¹ 256 Stainless Steel | 05055445967994 | |
| Hartmann Tuning Fork Frequency C 128 Stainless Steel | 05055445967741 | |
| Hartmann Tuning Fork Frequency C2 512 Stainless Steel | 05055445967765 | |
| Hartmann Tuning Fork Frequency C3 1024 Stainless Steel | 05055445967772 | |
| Hartmann Tuning Fork Frequency C⁴ 2048 Stainless Steel | 05055445967789 | |
| Hartmann Tuning Fork Frequency C⁵ 4096 Stainless Steel | 05055445967796 | |