ARTIST/IN 20th century, 3 figure/portrait studies, 1950 a.o.,

ARTIST 20th century, 3 figure/portrait studies, 1950 a.o., each pen and ink drawing/chamois-coloured paper, indistinctly signed (F. Spranger?), and 1x dated (19)50, HxW: mat opening approx. 14x12 cm to 17.5x13 cm, outer frame dimensions approx. 31x22.5 cm to 40.5x31.5 cm. Each with traces of age and browning, 1x stained. Each framed behind glass in passepartout.