Taking advantage of the new filler design, these pens were translucent, allowing you to see how much ink remained in the pen at any point (the ravages of time and ink exposure have made most surviving Vacs rather opaque, although you will still find lightly-used or new-old-stock examples with good transparency).The smart new arrow clip was fixed to the top with a handsome jewel screw, and a similar bit of trim was found on the blind caps of most of the earlier Vac models (the arrow clip and top jewel would remain a Parker hallmark through the 1970s).Big Red Senior from 1928–9 I own several Duofold Seniors.
Elaborating on an invention by a University of Wisconsin engineer, Parker came up with an all-new filler system and installed it on a new and visually-arresting line of pens that first went on sale in 1932.
The Ring Top would also appear on Parker's Vest Pocket models, for being attached to a watch fob.
Matching pencils would come with either clip or ring, depending on the pen selected.
1936, black and silvery green celluloid, bright chrome trim, triangular clip with ball at end is engraved: Parker.
The color is slightly darker than original, but far better than most from this era, I’d give it an 8 out of 10 with 10 being perfect. There is a hint of brassing to the cap edge and also at top of the cap back center. It is not unusual for the pencils which were made of celluloid to vary slightly from the fountain pens made of Lucite. ) Shiny black lacquer finish with bright chrome accents. The attached large cardboard easel on the back side has never been used. Large illustration on top half of a desk top with Parker Quink Permanent Blue-Black, a Parker Vacumatic fountain pen, smoking pipe and a framed photograph.