- Home
- Stamps
- Azerbaijan
- 2019
201931st International Olympiad in Informatics - First Day Cover
2019 31st International Olympiad in Informatics - First Day Cover for only GBP £1.50
- 10.08.2019
- Nariman Mammadzadeh
- Bobruisk Integrated Printing House, Bobruisk city, Belarus
- Offset
- 28x40 mm
About 31st International Olympiad in Informatics
The International Olympiad in Informatics (IOI) is an annual international informatics competition for high school students from various invited countries, accompanied by social and cultural programmes. It is one of the five international science Olympiads and is one of the most prestigious computer science competitions in the world.
Azerbaijan - Recommended stamp issues
WOPA+ recommended stamp issues
FDC Year Pack |
Issued: 01.11.2018 |
›Iceland |
800 Years Since The Start Of The Age Of The Sturlungs In 1220 |
Issued: 29.10.2020 |
›Iceland |
Lohner-Porsche Mixte |
Issued: 21.01.2022 |
›Austria |
Icelandic Art X |
Issued: 31.10.2019 |
›Iceland |
Ludwig Wittgenstein 1889 - 1951 |
Issued: 19.01.2022 |
›Austria |
Year of the Tiger |
Issued: 19.01.2022 |
›Guernsey |
Personalities |
Issued: 05.01.2022 |
›Romania |
FDC Year Pack |
Issued: 31.10.2019 |
›Iceland |
Norden Stamp – Mammals - Mink |
Issued: 29.10.2020 |
›Iceland |
Arrival Of The Mail Coach |
Issued: 19.01.2022 |
›Austria |
Year Set 2021 |
Issued: 31.12.2021 |
›Liechtenstein |