The dyeing of cotton and other vegetable fibres with the dyestuffs of Leopold Cassella & Co. Frankfort o. M (1902)
Leopold Cassella & Co · Frankfort o.M. : Leopold Cassella & Co. · leaf 55
Diamine Heliotrope1% … Oxy Diamine Blue 3R pal Normal. ; indicated i page 7. II — III. DiamineHeliotrope G. Same as with OxyDiamine Violet B. Diamine Blue 3R pat i%
Dyes and dyeing
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