1926 Sc 0131 Worker Scott X

1926. Worker. This stamp had never been in normal postal circulation, but was sold at philatelic stores, also exist with CTO cancellations.
Catalogs: Scott not listed, Standard Collection O131, Michel 271IBX.
Issued on: July, 1926.
Perforation: Imperforate.
Printing: Typography.
Watermark: 11a / 170
Face value: 1 Russian kopek.