Equatorial Guinea, 1970's-1990's, Original Artist's Proofs & Essays. Most interesting selection of 69 items, comprising designs mostly in tempera on boards & essays on glossy paper for a range of popular topical areas, such as Space, Art, Opera, Animals, Birds, Olympics & Ships; intended to be used in stamp designs; colorful & unusual, please inspect. Estimate  $200 - 300. $0