1927, definitive issue 8 K. on 7 K. yellow-orange (Postage Due Stamps Surcharged), without watermark, perforated 12, with lithography print Type I. The stamp in good condition with perfect perforation and small hinge mark. On reverse old signature and with new certificate of the Russian expert N. Mandrovskiy in Russian language. Russian Standard Catalogue: value 4.700 $. Very scarce !