old master

US /ˌoʊld ˈmæs.tər/
UK /ˌoʊld ˈmæs.tər/
"old master" picture
1.

Velho Mestre

a distinguished European painter of the period from about 1300 to 1800

:
The museum acquired a rare painting by an Old Master.
O museu adquiriu uma pintura rara de um Velho Mestre.
She specializes in the restoration of Old Master drawings.
Ela é especialista na restauração de desenhos de Velhos Mestres.