USSR. SC N 1015-1017. Proofs.

Three stamps of USSR, dedicated to the 23rd anniversary with day death V. I. Lenin, nominal value 30 kopecks, green; 60 kopecks, brown;
1 rouble violet; recess printing, on ordinary white paper, without gum, imperforated. Proofs stamps in non-approved colors and values. Stamps have a certification of S. Mikulski. Condition: without gum, without remarks. Do not described in catalog SC. Price in catalog of Solovyov - 900000,00 roubles.
Rare.