The 100th Anniversary of the Patent Office 2019
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2019
The 100th Anniversary of the Patent Office
23. maj VM: Ingen Arkstørrelse: 20 Design: Indrek Ilves Perforeringer: 14 x 13¾
![[The 100th Anniversary of the Patent Office, type BBY]](https://www.stampworld.com/media/catalogue/Estonia/Postage-stamps/BBY-s.jpg)
