77/ 546 Zwart, P. [N.K.F.]. "Kenmerkend voor ons fabrikaat: 1e papierisolatie, 2e looden mantel, 3e ijzerbewapening (...)". Advertisement, 1924, 32,4x14,9 cm., recto w. letterpress text, verso blank.

- Rubbed spot in left blank section; a few tiny tears in lower blank margin; traces of erased pencil annot. in right blank margin.

= Dated "1924" in pencil by Piet Zwart in lower right corner and verso w. his address stamp in green. Verso dated "18.6.24" in pencil by Kees Broos. PROOF.

Broos '73 p.39; Müller p.26