Sheaffer Snorkel Pencil, Blue
Pencil 1952-1959 Blue barrel White Dot on clip 0.9mm lead
Sheaffer Touchdown and Snorkel. In 1949 Sheaffer introduced a line of pneumatic-filling pens, in which the ink sac was emptied by air pressure generated by depressing a plunger. The pressure was automatically released once the plunger was fully depressed, allowing the sac to fill.