PARKER PRE-PRODUCTION Flighter PENCIL, Vector Clip - NEVER MARKETED

With a Parker VECTOR style clip and a tall, rounded metal eraser cover doubling as a clicker for a repeater lead propulsion mechanism. The inner pencil mechanism does not come out of the barrel or the cap, being held in by a snap-ring / wire clip visible on the front tip of the mechanism. Uses .022" (0.56mm) leads. These pencils were purchased from a former Parker employee and are un-marked . Each has a white tape hand-made label, possibly used for tracking it through a development test regimen or evaluation of some sort.