Columbia subject headings:
Etching, European--Exhibitions.
Facial expression in art--Exhibitions.
Head in art--Exhibitions.
Leonardo, da Vinci, 1452-1519--Exhibitions.
Moret, Mariano--Art collections--Exhibitions.
Harvard subject headings:
Etching, European--Exhibitions.
Facial expression in art--Exhibitions.
Head in art--Exhibitions
Leonardo, da Vinci, 1452-1519--Exhibitions.
Moret, Mariano--Art collections--Exhibitions.
Princeton subject headings:
Etching, European--Exhibitions.
Facial expression in art--Exhibitions.
Head in art--Exhibitions.
Leonardo, da Vinci, 1452-1519--Exhibitions.
Moret, Mariano--Art collections--Exhibitions.