GUINEA (1964) New York World Fair*. Preliminary artwork. Watercolor on paper mounted on posterboard measuring 12.8 x 10.8 cm. The issued colors were changed. Scott No C62.
AVAILABLE AT $120
GUINEA (1969) Planet*. Rocket*. Original artwork for the overprint for the Apollo 8 program issue (2 versions). Pencil, pen and ink on thick paper measuring 15.8 x 7.5 cm. Scott No 529//C112.
AVAILABLE AT $120