Rattlesnake Island, 1966-1968 and 1982 Perforated and Imperforate Issues, about (60) stamps, F-VF NH, the 1966 are rectangular in shape that led the USPS to issue a cease and desist order resulting in the now famous Rattlesnake Island triangle stamps. Also included are Plate Number Blocks (6) of the first triangles (1967) (Image)

$86