76/ 740 Zwart, P. [N.K.F.]. "Koper:draad, hard halfhard zacht, plat vierkant rond (...)". Advertisement, 1929, 29,6x11,7 cm. (leaf), recto w. letterpress text, verso blank.

- Upper left blank corner lacking sm. portion; upper right blank corner large rubbed spot; a few very vaguely soiled spots. Dated "10.7.29" in pencil on verso.

= PROOF. PZ-235; Rattemeyer p.86.