This section of the museum includes collections featuring philatelic artefacts dating from the 16th century to the present day and document the history of philately in Portugal. It also contains a parallel collection of art displaying some of the most important figures in the Portuguese visual arts. List of collections below.

Stamps

Includes stamps from Portugal, the former Portuguese colonies and foreign stamps from member countries of the Universal Postal Union (UPU). The collection also features experiments and tests, engraving plates and production stages of Portuguese stamps.

Stamped Paper

Collection consisting of non-illustrated, illustrated, commemorative and greeting stamped paper, postcards, aerogrammes, and postcards.

Original Designs

Original designs by some of the best known Portuguese visual artists for issued and non-issued stamps, stamped cards, first day covers with cachets, wallets and postmarks.

Stamp-postmarks

Collection composed by internal, first-day and commemorative postmarks.

Unused Cards

First day covers, covers/commemorative cards, and covers from the former Portuguese colonies and other countries.

Maximum Cards

Portuguese postcards from Macau and other countries.

Medals and Coins

Medals from Portugal, the former Portuguese colonies and other countries. This collection also contains Portuguese and foreign coins.

Certified Diplomas and Awards

Collection consisting of certified diplomas relating to the CTT's attendance at national and international philately contests and awards for issues of Portuguese stamps.

Items published by the CTT

CTT greeting cards, annual stamp year books (Stamps of Portugal), themed books of stamps, CTT diaries, and advertising material produced over the years.

Art Heritage

Paintings, serigraphs, engravings, lithographs, sculptures, tapestries and stained glass by Portuguese and foreign artists acquired by the CTT and Portuguese Communications Foundation.