Hello - I thought I'd share this, as I know there just might be some collectors out there:
http://www.the-saleroom.com/en-gb/auction-catalogues/cuttlestones/c...
There is also a lovely Fairbanks banjeaurine up for auction but, coincidentally, I have located an 'SS Stewart Imperial' banjeaurine (with the help of Kevin Scott at Findajo) - it should be with me by the weekend. Exciting.