Information booklet Wissekerk, Westerkerk, Willemskerk en Waalekerk for the VNS

No Author: 1966, softcover 31 pages, with some illustrations. Ships were made by the consortium of the shipyards Wilton-Fijenoord, P. Smit Jr. and van der Giessen de Noord. In this brochure, the technical details of the ships. In good condition