U.S.A. (1981) Barrel cactus*. Horizontal misperforation resulting in name appearing at top of stamp instead of bottom. Scott No 1942, Yvert No 1368.
AVAILABLE AT $80
U.S.A. (1981b) Saguaro cactus*. Misperforation resulting in removal of wording at bottom and imperforate at top. Scott No 1945, Yvert No 1371.
AVAILABLE AT $75