I finally played one early this year. The owner claimed it was once played by Stan Clarke in RTF and had been purchased for £23,000 by a rich girlfriend (I didn't know whether to believe him or not). Truly astonishing instrument in terms of balance, feel, dimensions and ergonomic brilliance. When you play one of these instruments you suddenly realise why the design is so influential - in fact Carl Thompson is the MOST influential designer of the bass guitar after Leo Fender. Some people don't understand - they think it's all about scrolls, ornate woods and cosmetics, etc.
Er, no I don't have one, I'm afraid but I admire this example on Talkbass: