Japanese Stamps Digital Museum

田沢型昭和白紙切手(輪転版) << 1937年(昭和12年) >> みほん 1-4-6

Tazawa syowa White Paper stamps 1 Issued on 1937(Showa12) - Specimen -

Showa White Paper Stamps Issued on 1937(Showa12) - Specimen - In 1937 (Showa 12), Tazawa stamps were changed to blank paper again due to the evolution of anti-counterfeiting technology due to the adoption of a new printing machine. This stamp paper was a material developed for the first Showa stamps. The first Showa stamps issued from May 1937 took three years to complete the issuance of all types, so they were issued to connect them. The above is the "revolving version" in it.

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The above is only true for specimen stamps.
For more information and official printed stamps, see this.
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