Hi Wigeon, These are both Soviet general revenue stamps. The sailor design was first issued in 1923 and the arms design in 1926.
Thank you nigelc! Do you know if they have a Scott number? I'll check the catalogue again but couldnt find them earlier. Much appreciated.
Revenue stamps are not listed in the standard catalog unless they were also valid for postage. These were not valid for postage.
Thank you Michael.
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