1893 TOBACCO FABRICATION COURSE antique FRENCH MANUSCRIPT COLLOTYPE illustrated

Direction Generale des Manufactures de L'Etat.
Ecole d'Application.

(Tobacco Fabrication Course 1892-1893, with chapter on cigars manufacturing)


Paris, Courtier ; 1893


Manuscript in collotype.

Folio with numerous text sketches.

232 pp.


Copy from the French Ministry of Finance (gold embossing on the ribbed spine and stamp).
Half leather over marbled boards, marbled endpapers


Size: 8 1/4 by 12 1/4 inches

Text in French
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Collotype is a photomechanical printing process that produces continuous-tone images, meaning it can reproduce a wide range of tones and shades without the need for halftones. It relies on a light-sensitive gelatin coating on a plate that hardens and becomes ink-receptive in proportion to the amount of light exposure. This allows for the creation of prints that capture subtle gradations of tone and detail, similar to photographs. 
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