Subject fakes, of course, very relevant. But, fortunately (in terms of fakes), prints of Mr. Shemyakin have not yet achieved such popularity, such as Dali or Chagall
In an article that contained the first reference, summarized: "We hope that the fake and counterfeit prints with luxurious signature" Chemiakine "never appear. Disturb fakes of his paintings ..."
Most of my lithographs Shemyakin made on paper Arches Paper (watermark) and have a print studio Claude Jobin - Paris Grapholith.
Upon request I can send more photos and descriptions.