The VS was one of Parker’s lesser lights from a justifiably confused period, a 1946-49 attempt to introduce a pen that looked like a 51 but with far less costly features. It is US Parker’s only button-filled pen of the post-WWII era, using the same button as Parker in England used in its Duofold AF around the same time. The appearance, however, is all 51-generation, with the navy blue barrel and hood and Lustraloy steel cap. The clip does not have an arrow, and has “Parker” printed vertically down its length. The hood looks to be borrowed from a later 21, but it does not have a filler inside; instead, there is a traditional feed and the large open nib.
Parker was not above producing hybrid pens, usually to be bridges between eras and effective means of using up parts inventory. The VS is interesting for its progressive feature changes over only three years. They are not often seen, and are good writers.