Scientific American January 25, 1908. 57 \yt this gradation, those portions which formerly had A PHOTOGRAPHIC METHOD OF PRODUCING … graphic records tive, both as regards light to reconstruct Portrait Produced in Bas-Relief by Portrait Produced in Bas-Relief by About to Make an Exposure Through One of the gradations due the model, the Photo-sculpture Process. the Photo-sculptnre Process. Revolving Bisks. to the glass probably…
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