Wenceslaus Hollar, Portrait Of An African Boy, 1645, etched print, 3 x 2½in (7 x 6cm), Daniel Crouch Rare Books, priced £15,000.
Olga Fröbe-Kapteyn, The Light of the Soul, screenprint, c.1930, Gerrish Fine Art, available for £950.
A 1645 etching of an African boy by Wenceslaus Hollar (1607-77) is part of a collection of more than 200 works by the Bohemian artist on offer from Daniel Crouch Rare Books at the London Original Print Fair (LOPF).