Jaap BeukerJaap Beuker (1952) was curator of archaeology and head curator at the Drents Museum in Assen (Netherlands). Since his retirement in 2017 he has carried out research on various archaeological subjects such as flint technology and prehistoric use of extic materials. Since the mid-1980s he has worked on the prehistoric import of flint from Heligoland. He has written several articles and books on stone artefacts and especially about the use of red and tabular Heligoland flint. Read More Read Less