Horgan's half-tone and photomechanical processes .. . Fig. 2.— Three-color Reproduction, Red made through a green filter. Fio 3.— Three-color Reproduction, Blue made through an orange filter. \. Fig. 4.— Three-color Reproduction, Yellow-red Impression.

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Keywords: ., bookcentury1900, bookdecade1910, bookidhorganshalft, bookyear1913