Issued in 1978 for the Europa CEPT series, this elegant two-stamp set from Liechtenstein features architectural treasures linked to the princely family. The 40-rappen blue stamp depicts Palais Liechtenstein on Bankgasse, Vienna—an early Baroque masterpiece built in the 17th century. The 80-rappen red stamp shows Schloss Feldsberg (Valtice Castle), a splendid Baroque estate that once formed part of the Liechtenstein holdings in Moravia. Both designs, engraved with intricate detail, celebrate Europe’s shared cultural and architectural heritage.