[Advertising studies] 6x: (1) "Kuhla-Berlin f. 875,- Frans Esser's Pianohandel

Rozengracht 232-234 Amsterdam". Original design in gouache on cardboard, signed "W. de Mooij" bottom right, 50.5 x 33 cm.

(2) "Bi-Arlita. Opnieuw tot 20% besparing Philips". Original design in gouache, with incorporated, pasted reproduction, signed "P. v. Sijtsema" top right, 27.5 x 47.5 cm.; (3) "Hohner Mondharmonica's". Original design in gouache, signed "J. Huizinga Nov. '35" top right, 37.5 x 65 cm. (minor defects); (4) "Telefunken Radio. 77 stations". Original design in gouache on thick paper, signed "C. Streng '36" bottom right, 68 x 48.5 cm. (one top corner dam.). And with 2 similar works on Junghans Uurwerken and Wijnhandel Paul Sorbi (The Hague). (total 6)