Siberian Provisional Administration. Rare Study group of 500 Roubles, 1920.
Siberian Provisional Administration. Rare Study group of 500 Roubles, 1920. P-S1192, 1192b, 1192p. Regular issue with red serial number, issue without red serial number, and Back Proof (with other side a pattern of green leaf arabesques on red).
Numeral notations penciled at top margins. Very fine to extremely fine. Set of (3) pieces.