This attractive Italian definitive stamp features the historic Castello Normanno-Svevo of Bari, one of Southern Italy’s most important medieval fortifications. Originally constructed by the Normans and later strengthened under Emperor Frederick II, the castle represents Italy’s layered architectural heritage. Issued by Italy, the stamp highlights national monuments through detailed engraved-style artwork with warm tonal shading. The 300 Lire denomination reflects late-period postal usage before Euro adoption. A desirable thematic piece for collectors specializing in castles, architecture, or European heritage issues.