This is a mention of Russell and Sons being the sole licensees of the Clifton Pigment process and a Photo-Miniature description of the Clifton Color Carbon process which appears to be a very obscure process.
My apologies for This tangle of posts. Something went a kilter and I suspect it was having too many files open and the pdf files dropped all of their images.
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Extracted%20pages%20from%201911%20The%20British%20Journal%20of%20Ph...
This is a mention of Russell and Sons being the sole licensees of the Clifton Pigment process and a Photo-Miniature description of the Clifton Color Carbon process which appears to be a very obscure process.
My apologies for This tangle of posts. Something went a kilter and I suspect it was having too many files open and the pdf files dropped all of their images.
Extracted%20pages%20from%201886%20Vols%201%202%20Photographer%20s%2...