- Serial No. 9397 & Hohner Trademark
- Serial-No
- serial-no-114xx
- Serial-No-2738
- side bb c keys
- Side Bb & C Keys
- Side Bb & C Keys
- Side Bb and C Keys
- Side C & Bb Keys
- Socket From Left Side
- socket front view with round thumb screw
- socket with round thumb screw
- Socket With Round Thumb Screw & Original End Plug
- Stamp-A-49