This issue depicts six notable sculptors of the early 20th century. The design shows them in bas-relief and with deliberate hand posture. Most of the following links lead to photos of some of their works. The Chiado Museum in Lisbon holds several smaller statues by these sculptors.
Francisco Franco was one of the main sculptors in the 1920s and 1930s, having several statues commissioned by the government, like the one of King John IV in Vila Viçosa, made for the 1940 exhibition and depicted in the corresponding stamp issue. He also sketched the statue of Christ the Redeemer in Almada, which now looks upon Lisbon and the April 25th Bridge over the Tagus, but it was only finished posthumously.
António Teixeira Lopes was the son of a sculptor and studied in Porto with Soares dos Reis and later in Paris. He returned to Porto, where his atelier is now a museum. Among his main works are the bronze gates of the Candelária church in Rio de Janeiro, and the statue of Eça de Queirós in Lisbon (on your right when you descend from the Chiado towards Cais do Sodré).
António Augusto da Costa Motta has several works across Lisbon, its squares and parks. Tourists are most likely to come across the statue of poet António Ribeiro in Chiado Square and the tombs of Camões and Vasco da Gama in the Jerónimos Monastery.
Rui Roque Gameiro was the son of aquarelist Alfredo Roque Gameiro, who in turn was father-in-law of Jaime Martins Barata. Rui Gameiro was a modernist sculptor, author of two statues to those fallen in WW I, one in Abrantes (the first cement statue in Portugal), the other in Maputo. He died young, victim of a car crash.
José Simões de Almeida (nephew) was a naturalist sculptor. He studied with his homonymous uncle, a professor of Sculpture at the Fine Arts School in Lisbon, where he later taught Rui Gameiro. He did the bas-reliefs of the Portuguese Parliament, among several statues and busts of well known Portuguese personalities.
Francisco dos Santos was a painter, sculptor and football player. He played for Sporting in Lisbon and captained Lazio in Rome, becoming the first Portuguese international football player. He studied with Simões de Almeida (uncle). He is the author of the official bust of the Republic, an already popular design by Simões de Almeida (nephew) coming second. Francisco dos Santos is also the main author of the monument to the Marquess of Pombal in Lisbon, but the bas-reliefs had to be finished posthumously by Simões de Almeida (nephew).
The stamps were designed by António Duarte and engraved by Álvaro Lucas, printed in recess by the Mint on wove paper sheets of 5×10 stamps , and circulated from 7 July 1971 to 31 December 1983. The 1 and 3.50 Escudos stamps have perforation 12×12½, the 2.50 and 4 Escudos stamps have perforation 13½, and the remaining exist with both perforations.