Reproduction of the oldest Portuguese astrolabe, as attested by the mark of five small circles in a cross, from the year 1575. Found in the Aveiro estuary in 1994, it is now part of the emblematic collection of the Maritime Museum.
Ø6.7 x 8 x 0.5cm, base: 7.5 x 2.7 x 5cm, Patinated brass, Wood.
