Only 100 were released before the mistake was ... making them exceptionally rare. One of these stamps sold at auction for €1.26 million (about $1.73 million after closing costs).

Indore, Feb 3 (PTI) The Maha Kumbh at Prayagraj and the Simhastha Mela of Ujjain are among the prominent religious events featured in the collection of more than 100 rare stamps and special postal ...

Gross’ stockpile of over 100 postage stamps contains several ultra-rare items — including multiple stamps worth more than $1 million — that make it the only complete collection of every ...