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Heliogravure by E. Baldus

(Fr.: Procédé Baldus)

PHOTOMECHANICAL process introduced by the Frenchman Baldus in 1854. The first version of the process used BITUMEN of Judea on a copper plate, but later on, a DICHROMATE coating was used. (Nadeau, Encyclopedia, p. xxx.).

BaldusEliogravure43w8x6 Heliogravure by E. Baldus, plate: 236 x 295 mm, image: 153 x 183, "Deux Faunes portant un enfant. Eliog're de E. Baldus, rue d'Assas, 25, Paris". 1881. ["Eliog're", sic]

Heliogravure by E. Baldus, plate: 236 x 295 mm, image: 153 x 183 mm, “Deux Faunes portant un enfant. Eliog're de E. Baldus, rue d'Assas, 25, Paris.” 1881. [“Eliog're,” sic]