two etchings and aquatints
“Glacial Intrusions (Precambrian Shield Series)” (etching and aquatint, signed, titled, dated 1978 and numbered 30/45 in the lower margin; 23.25 x 17.5 inches [subject]);
“Banded Rock (Canadian Shield Series)” (etching and aquatint, signed, titled, dated 1973 and numbered 2/30 in the lower margin; 21.75 x 27.5 inches [subject])
21.75 × 27.5 in (55.2 × 69.8 cm) (largest subject)
Auction Estimate:$500 - $700
Sale date:October 12 - 26, 2021
