Analysis of Ostwald's Theory of Colour

Comprises an analysis, which includes making harmonies and using the atlas (2p.), and an abridgement (8p.), in English, of Ostwald's 'Farbnormen und Farbharmonien' ('Colour standards and colour harmonies') 3rd. ed. 1925 (8p.) in hardboard folder. With colour atlas: 'Ubersichtsplan zum Farbnormenatlas von Wilhelm Ostwald' (a colour chart 45 x 37cm. folding to 22.5 x 18.5cm., in case) and 4 boxes (each 30 x 6.5 x 4.5cm.) of corresponding cards (each 4 x 5.5cm.) in a total of 29 packs, all printed by Unesma of Leipzig.