ARTIST/IN 20th c., 2 Abstract compositions,

ARTIST 20th century, 2 Abstract compositions, each color aquatint etching / paper, each indistinctly signed by hand (Kraiker?), 1x num. 4/5 and dated 26 - 5 - 67, 1x inscribed 'Probedruck' and dated 18 - 6 - 1972, HxB: Plate approx. 22x14.5 cm and 20x14 cm, outer dimensions frame approx. 48x37 cm each. 1x browned and light edge, 1x slightly browned and wavy. Each framed in passepartout behind glass.