This is a Waterman Lady Patricia Ink-Vue Black Lace c1936. In the Christmas, 1936 Pen Prophet, Waterman announced the Lady Patricia Ink-Vue as a new model, selling for $5.00 with matching pencils for $3.00. They were initially offered in Mist (grey), Sunset (red pearl) and Black Lace, each having a diamond pattern ink-vue barrel. The diamond motif continued with the gold filled clip, cap band, and lever. The flat cap top is a gold filled disc that attaches the clip. The Ink-Vue lever is a reverse split lever that pumps a short sac in the back of the barrel to fill the pen. These pens are 4 1/4 inches long. Nibs are 14 karat gold Number 2 size.