1. Department of Physics and Technology, University of Bergen, Allegaten 55, 5007 Bergen, Norway.
2. Environmental Archaeology and Archaeometry, The National Museum of Denmark, Ny Vestergade 11, 1471 Copenhagen, Denmark.
3. Archeotex, Kirchweg 58, 8755 Ennenda, Switzerland.
4. The Danish National Research Foundation’s Centre for Textile Research, SAXO Institute, University of Copenhagen, Njalsgade 102, 2300 Copenhagen, Denmark.
5. Plant Evolution Research, Warwick HRI, University of Warwick, Wellesbourne, CV35 9EF Warwick, UK.
6. Institute of Experimental and Applied Physics, University of Kiel, Olshausenstrasse 40, 24098 Kiel, Germany.