Translations:Resina plastica/4/en

But Parker was not the first manufacturer to use these new materials, well before the official launch of 51, in 1939, Waterman launched the Hundred Year model, also produced with the same material, Lucite, which was probably the first major model produced in plastic resin. Another great success plastic resin model was the Eversharp Skyline, made in polystyrene. Since the '50s, most manufacturers began to abandon celluloid, which until then was the dominant material, to switch to the use of different kind of plastic resins.