1942, 24 Gr. Plus 26 Gr. \"culture sponsors, proof with recessed inscription in Russian green of the original engraving plate on gummed yellowish paper in the size 64 x 95 mm, on small specimen cardboard at the bottom affixed, handwritten notation of the steel printers \"28 / 8.42 L\", in perfect condition, expertized Ludin BPP with certificate.