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2025Do you like Pi - Sheetlets
About Do you like Pi
A round sheetlet with round stamps of a blackboard showing calculations with pi, or references to the number.
WOPA+ recommended stamp issues
| Music Giants VII - Iron Maiden |
| Issued: 12.01.2023 |
| ›Great Britain |
| Effigy of H.S.H Prince Albert II - Green Letter Rate |
| Issued: 03.01.2023 |
| ›Monaco |
| Year of the Rabbit |
| Issued: 05.01.2023 |
| ›Guernsey |
| Dimitrie Cantemir, 350th Anniversary of his Birth |
| Issued: 16.01.2023 |
| ›Romania |
| Medicinal Plants |
| Issued: 03.01.2023 |
| ›Romania |
| Lunar New Year - Year of the Rabbit |
| Issued: 05.01.2023 |
| ›Jersey |
| Honour Guard of the President of the Slovak Republic |
| Issued: 02.01.2023 |
| ›Slovakia |
| Veteran Tractors |
| Issued: 04.01.2023 |
| ›Aland Islands |
| St. Elizabeth’s Church in Parnu |
| Issued: 06.01.2023 |
| ›Estonia |
