Author: CABANES Louis - C. BELLENFANT :
Title: Harmonicolor. Disque d'harmonie des couleurs.
Description: .: Paris, Imprimerie Larousse, s.d. ( ca. 1950 ?), in-4°, 25 x 18,5 cm, 4 pp, (no wrapper, as issued), with a vovelle, very fine state of preserrvation. [ French system for combining different colours when designing. The colours are printed with the stencil colour method].. .

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