Thu, 01 Jan 1970 01:00:00 +0100Thu, 23 Jul 2026 12:44:55 +0200Penny Black, Red Mercury and Blue Mauritius: rare stamps and postal artefacts worth 50 million crowns on display in Praguehttps://english.radio.cz/penny-black-red-mercury-and-blue-mauritius-rare-stamps-and-postal-artefacts-8834457© 2026 Radio Prague International For six days, starting on November 12th, a unique exhibition of rare stamps and other extraordinary historical objects has opened in central Prague. For the first time in history, the public has the opportunity to see the best-preserved specimen of the famous Red Mercury, a newspaper stamp from the nineteenth century, as well as a famous ‘facing slip’ saved from the Titanic. encr@radio.cz (Cesky Rozhlas)webmaster@radio.cz (CRo Webmaster) https://english.radio.cz/sites/default/files/images/809737a31d4fa24d83d414c4457531ce.jpg?timestamp=1731508831 Penny Black, Red Mercury and Blue Mauritius: rare stamps and postal artefacts worth 50 million crowns on display in Prague https://english.radio.cz/penny-black-red-mercury-and-blue-mauritius-rare-stamps-and-postal-artefacts-8834457 Radio Prague International Radio Prague International radio.prague.int@gmail.com clean 0 1 2 3 4 5 6 7 8 9