Venda de velharias, objetos antigos e raros
The Antiques Fair takes place on the third Saturday of each month at Praça Velásquez, from 8am to 6pm. Discover antique objects and junk, including books, porcelain, furniture, coins, tapestries and paintings.

Image: from the event entry at Agenda Porto.
Source: Agenda Porto (Câmara Municipal do Porto). Details can change; the original entry is the reference.