he stamps of Portugal represent one of the core areas of Portuguese philately, covering classic, commemorative and modern issues that reflect the postal, historical and cultural development of the country from the nineteenth century to the present day. This category includes used and unused stamps, thematic series, regular issues, service stamps, proofs, varieties, printing errors and items of special interest to collectors. It encompasses issues from both the Monarchy and the Republic, as well as series celebrating national events, historical figures, heritage, fauna, flora and contemporary themes. Portuguese stamps illustrate the nation’s postal identity and offer a broad field of study, allowing collectors to explore different periods, printing techniques, face values, postal rates and historical contexts associated with official CTT issues. The category is under continuous update and will be progressively expanded with the extensive philatelic stock available.