细节
RIVA HELFOND (b. 1910)
Lehigh Valley
lithograph, 1937, on wove paper, signed, titled and dated in pencil, numbered 21/25, with unevenly trimmed margins, minor soiling on the reverse; and #6 Mine--lithograph, 1939, on wove paper, signed, titled and dated in pencil, inscribed 'Ed 15', with unevenly trimmed margins, minor soiling in the margins and on the reverse, an occasional soft crease at the margin edges (2)
Lehigh Valley
lithograph, 1937, on wove paper, signed, titled and dated in pencil, numbered 21/25, with unevenly trimmed margins, minor soiling on the reverse; and #6 Mine--lithograph, 1939, on wove paper, signed, titled and dated in pencil, inscribed 'Ed 15', with unevenly trimmed margins, minor soiling in the margins and on the reverse, an occasional soft crease at the margin edges (2)