77/ 581 Zwart, P. [Rotterdam harbour]. "De haven van Rotterdam (...)". Backwrapper for the brochure, 1928, 20,8x11 cm., recto w. letterpress text, ills. and photo-montage printed in black, blue and red, verso blank, tipped onto grey paper mount.

- Verso mount w. remnants of former mounting (not affecting text [see below]).

= Recto mount dated "1928" by Piet Zwart in pencil in lower left corner; verso mount w. annots. "1928/ Achterzijde omslag/ Havenboekje" and "P. Zwart Wassenaar/ 290 Rijksstraatweg" in red ballpoint by mrs Nel Zwart-Cleyndert.

Cf. PZ-047 (the frontwrapper); Brentjes p.191.