Nicolaas P. de Koo (1888-1960) (1) Chambre de Commerce Internationale Rotterdam Juillet 1929
C. Chevalier, Rotterdam, 1929. 24 p. Folded as issued. Isotype, design and typography P. de Koo. (2) The Growth of Rotterdam. Gemeentelijke woningdienst Rotterdam, Print C. Chevalier, june 1924. 16 p. Folded as issued. Design and typography de Koo. (3) Boerhave. Hout uit vijf werelddeelen. Den Haag, 1939. 80 p. Added: a picture postcard and 5 labels 'Phoenix Bier', 1930s design de Koo.
(total 9)