77 578 Zwart P
77/ 578 Zwart, P. [P.T.T.]. "Postcheque- en Girodienst 1918-1968". ORIGINAL DESIGN for the commemorative P.T.T. poststamp, 5x8,7 cm. (leaf 19,6x13 cm.), pencil, col. pencil and black ballpoint, w. annot. "praatschets" in pencil by Piet Zwart. - WITH: first day cover of the stamp, 16 January 1968, envelope w. printed image and text (in red, gold and black), mounted poststamp and "Eerste dag van uitgifte" date stamp.

= Envelope addressed in blue ballpoint to Kees Broos and containing a handwritten correspondence card by mrs Nel Zwart-Cleyndert: "16-1-68. Met onze hartelijke groeten, tot vrijdag. Piet en Nel Zwart Cleyndert."

AND WITH: small publication "Aangeboden door het Staatsbedrijf der PTT ter gelegenheid van de tentoonstelling Piet Zwart en PTT" (The Hague, 19 January 1968, 5 ringbound lvs. (incl. wr.), w. 2 tipped-in sheets of 4 of the commemorative PCGD poststamps).

= Broos '68, no;281.

€ (300-500) 300