These are the most valuable stamps from around the world ... There are at least 86 known in existence (only 100 were ever printed), but the one sold in 2018 is the most expensive because it ...

the exhibition at the World Trade Centre had 145 of the country's top philatelists displaying their collections. Nearly a million valuable stamps including the rare 1852-issued Red Sind Dawk ...

Two philatelists in Indore preserve a unique collection of over 100 rare stamps and special postal covers related to the Maha Kumbh in Prayagraj and Simhastha Mela in Ujjain. These collections ...