"Parker duofold 14k pen "35 etching. Aluminium button filler hidden under the blind end cap. Restored to full working serviced condition. Lovely pen authentic and correct in every detail. In 1948 the duofold was changed again when the metallic button on the filler was transformed into an aluminium rod, rather than a button as such.
This new pen was called the af duofold, aluminium filler. With this pen the tassie ring was also discontinued and the blind cap became rounded, like on later vacumatics. Parker began offering matching pencils as well.The colour scheme was also simplified.