Bruxelles, 1933-35, in-4to, reliures en cuir bordeaux, plats et dos avec inscription dorée, vol. 1 et 2 tranches dorées, vol. 3 tranches jaspées rouge.
Most articles, some of which in 5 western languages, concern the products of chocolat and cacao, their origin, production, properties, fabrication, etc., a few articles treat of apparatus and machines. Each volume contains many interspearsed illustrated advertising leaves, showing machines used (in 1935) for fabrication.
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