Both A. van den Berg Pzn. (son) and Pl. van den Berg (father) have been contributors to the VAKBLAD. Since volume 26 also uses the initials "A.v.d.B." (p. 103; logically for A. van den Berg Pzn.), in this volume the initials "v.d.B." - without A. - interpreted as Pl. van den Berg. The architectural drawings accompanying this article bear the monogram A.v.d.B.. Design years: 1931 (before) Illustrations: architectural drawings/reinforced concrete, arch. A.v.d.B.