The Parker Vacumatic fountain pen was launched in 1932, and would come to out-sell the Parker Duofold, the then top seller. The pen was originally marketed under the name of Golden Arrow, a reference to the new arrow clip but was again changed to Vacuum Filler in reference to its ink reservoir filling action. Although the pen came in many sizes and colors, the most widely recognizable Vacumatics featured alternating horizontal bands of pearlescent and clear celluloid. These clear bands allowed the user to see the level of ink in the barrel. Several generations of Vacumatic were produced.