A review article of the book, “DE VAL VAN ASSEN,” by DR. J. SCHELHAAS H ZN., Uitgeverij Bolland, Vlaardingen, 1968, 92 pp., f 5.25.   Perhaps a fair number of our readers have never heard of Assen, let alone its fall, which is the title of this book under review.   Assen is a city […]