Now showing: San Marino - Postage stamps (1980 - 1989) - 20 stamps.
24. February WM: None Sheetsize: 40 Design: A. Titonel Engraving: I.P.Z.S. Roma Perforation: 14¼ x 13¼
![[Pioneers of Science, type AIO]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIO-s.jpg)
![[Pioneers of Science, type AIP]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIP-s.jpg)
![[Pioneers of Science, type AIQ]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIQ-s.jpg)
![[Pioneers of Science, type AIR]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIR-s.jpg)
![[Pioneers of Science, type AIS]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIS-s.jpg)
![[Pioneers of Science, type AIT]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIT-s.jpg)
| No. | Type | D | Color | Description |
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| 1280 | AIO | 150(L) | multicoloured | Alexander Fleming | (500000) | 0.26 | - | 0.26 | - | USD |
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| 1281 | AIP | 250(L) | multicoloured | Alessandro Volta | (500000) | 0.26 | - | 0.26 | - | USD |
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| 1282 | AIQ | 350(L) | multicoloured | Evangelista Torricelli | (500000) | 0.26 | - | 0.26 | - | USD |
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| 1283 | AIR | 400(L) | multicoloured | Carl Linnaeus | (500000) | 0.52 | - | 0.52 | - | USD |
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| 1284 | AIS | 1000(L) | multicoloured | Pythagoras | (500000) | 0.79 | - | 0.79 | - | USD |
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| 1285 | AIT | 1400(L) | multicoloured | Leonardo da Vinci | (500000) | 1.05 | - | 1.05 | - | USD |
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| 1280‑1285 | 3.14 | - | 3.14 | - | USD |
24. February WM: None Sheetsize: 40 Design: T. Mele Engraving: I.P.Z.S. Roma Perforation: 13¼ x 14
![[The 100th Anniversary of San Marino High School, type AIU]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIU-s.jpg)
20. April WM: None Engraving: Courvoisier Perforation: 12 x 11¾
![[EUROPA Stamps - Inventions of Auguste Piccard, type AIV]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIV-s.jpg)
![[EUROPA Stamps - Inventions of Auguste Piccard, type AIW]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIW-s.jpg)
20. April WM: None Engraving: I.P.Z.S. Roma Perforation: 14 x 13¼
![[World Communications Year, type AIX]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIX-s.jpg)
![[World Communications Year, type AIY]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIY-s.jpg)
20. April WM: None Sheetsize: 40 Engraving: I.P.Z.S. Roma Perforation: 14 x 13¼
![[Formula One - San Marino Grand Prix, type AIZ]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIZ-s.jpg)
![[Formula One - San Marino Grand Prix, type AIZ1]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AIZ1-s.jpg)
22. May WM: None Engraving: I.P.Z.S. Roma Perforation: 13¼ x 14
![[The 200th Anniversary of Aviation, type AJA]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AJA-s.jpg)
29. July WM: None Sheetsize: 50 Engraving: Courvoisier Perforation: 11¾
![[World Cities - Rio de Janeiro, type AJC]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AJC-s.jpg)
29. September WM: None Sheetsize: 40 Design: A. Sassu Engraving: I.P.Z.S. Roma Perforation: 14 x 13¼
![[The 20th Anniversary of the UN World Food Programme, type AJD]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/AJD-s.jpg)
1. December WM: None Perforation: 13¾
![[Christmas - The 500th Anniversary of the Birth of Raffaelo Sanzio, 1483-1520, type ]](https://www.stampworld.com/media/catalogue/San-Marino/Postage-stamps/1297-b.jpg)
