The Exploraudio H-clamp can be used to attach a microphone on an upright bass or a cello. It is in pristine condition.
It's the one here H-Clamp Light Upright Bass and Cello Microphone Mounts at Gollihur Music - Double Bass, Upright Bass, String Bass Specialists
It's the one here H-Clamp Light Upright Bass and Cello Microphone Mounts at Gollihur Music - Double Bass, Upright Bass, String Bass Specialists