Two Studies of Heads

Two Deformed Heads Facing Inwards

Wenceslaus Hollar, after Leonardo da Vinci

Caprice

Jean-Baptiste de Grateloup

Studieblad met twee koppen

Jacob de Wit

Two Deformed Heads Facing Inwards

Wenceslaus Hollar, after Leonardo da Vinci

A Grotesque Couple: Old Woman with an Elaborate Headdress and Old Man with Large Ears and Lacking a Chin

Attributed to Giovanni Francesco Melzi, After Leonardo da Vinci

Two male heads

Theodor Richard Edward von Holst

Two Heavily Bearded Men

Circle of Stefano da Verona (Stefano di Giovanni d'Arbosio di Francia)

Studieblad met een portret van Caravaggio en bustes van Dante en Brutus

Nicolaas van der Waay

Two Male Heads

Honoré Daumier

A female with hair tied back and a bald male facing each other

Wenceslaus Hollar, After Leonardo da Vinci

Two Men in Profile (from Bas Relief)

John Downman

Koppen

Johannes Tavenraat