websites ect for buying bone?

[Tarbicus]

If you look at the plaque you can see that not they are not all bone but that ivory was also used.

Thanks Jef. I was under the impression that 1st C was mainly bone, and ivory was generally used later (spathae). Are you sure it doesn't mean 'made of ivory or bone'. There often seems a degree of uncertainty, with some museums not even sure if parts were bone or wood.

Another British found bone/ivory set in Maltom Museum.
http://www.maltonmuseum.co.uk/images/la ... dTools.jpg

This seems to be a common shape as well:
http://www.exploratio.org/image_databas ... GP3341.jpg