76/ 756 Zwart, P. [N.K.F.]. "Wij specialiseeren ons vanaf 1913 op de vervaardiging van kabels met papier-isolatie (...)". Advertisement, (1931), 14x21 cm. (leaf), recto w. letterpress text, verso blank, tipped onto brown paper mount along left and right margin.

- Trifle wrinkled in right margin from tipping onto mount. Dated "10.6.31" in pencil on verso mount. = PROOF. PZ-086.