IBRA Treasury

Visitors to IBRA 2023 can look forward to the IBRA Treasury of world rarities, with shows the "Bordeaux Letter" with one blue and one red Mauritius.

The letter can be shown through the mediation of the stamp house Richard Borek GmbH & Co. KG. Together with this "crown juwel of philately", further top pieces of German and international philately will be shown.