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Goldtone/Orotone
Curtis perfected this painstaking process, customizing it by renaming his prints Curt-tones, although the common term used today is goldtone. The image is printed in reverse on a sheet of glass, then backed with a viscous mixture of powdered gold pigment and banana oil. Ornately molded and gilded frames were provided by the Curtis studio to protect the delicate images.
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