Hi Chuck, Thank you for your fast reply. Unfortunately I do not know of your reference Olsen. Could you please give me further details on that one. I'll send you any reference that I come across. Best wishes Britt-Marie Britt-Marie Hägerman, Osteolog Malmö Kulturmiljö/Malmö Heritage Kultur Malmö/The City of Malmö Box 406 SE-201 24 Malmö, Sweden Tel: 0046240-750 60, Fax: 040-34 44 72 [log in to unmask] http://www.museer.malmo.se/kulturmiljo