Hi Bjorn, We have good experience with Piotr Kulbicki MiEKiNiA Geotechnical Lab PL-30-376 Krakow, ul. Prylinskiego 12 POLAND email: [log in to unmask] The costs are in the range of 40 - 100 Nkr You may expedite the delivery if you enclose glasses (slides) Best regards uwe altenberger PD Dr.Uwe Altenberger, Inst. f. Geowissenschaften Universität Potsdam Postfach 601553 D-14415 Potsdam Germany Tel.: +49 331 977 2895 FAX: +49 331 977 2087 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%