77/ 577 Zwart, P. [P.T.T.]. "Verlaagde posttarieven ingaande 1 november 1929 (...)". Announcement leaf, 1929, 17,6x12,4 cm., recto w. letterpress text printed in black, verso blank, tipped onto grey paper mount at corners.

- Upper corners trifle wrinkled.

= Dated "1929 Reichspost" by Piet Zwart in pencil in lower left corner of mount and verso mount with "PietZwart/ Rijksstraatweg 290/ Wassenaar Holland/ 1929" in pencil by the same.

Broos '68, no.40; cf. PZ-192.