QUOTE(jicaino @ Jun 21 2008, 12:37 AM) [snapback]646488[/snapback]
perhaps I'm being a pain in the ... (neck)
but, I'm fooled by the picture or the pattern on that particular blindcap is a little different than the one from the barrel? I see the lighter stripes like a hair thicker on the blindcap wich would explain the difference in shape (that is if those lines are indeed thicker wich can lead us to think about a close match but still not 100% perfect) The pen I saw was green and the blindcap looked like a green hued silver, so I thought "mismatch".
I would be willing to bet my (neck) on the final shaping AFTER the filler unit install, because even on unpolished pens (those scarce finds upon you're almost certain there's been no buff other than factory's) the thickness of the blindcap and barrel ends is not even, wich in my POV calls for cut of the largest OD, then install filler and diaphragm and blank blindcap, then do the final streamline cut.
Sorry I'm kind of hijacking this, but I'm highly interested on an expert opinion on these matters (pattern match, size, wild guessing about factory production ways and such)
No pain. Simply imperfect answers, especially without pen avaialable for inspection.
For most Vacs, the blindcap indeed is hewn from a totally different piece of plastic than the barrel, as barrel has color/clear stripes. Blindcap has color/black stripes. Thus, close inspection often will show differences in the plastic "grain", though it seems that later in the run the stripe contour is better approximated between the two pieces. Early pens have skew stripes and often show abrupt shifts between barrel and blind cap. One would still expect a good fit as it is believed Parker did final smoothening of the transition after fitting the filler unitl.
Early pens had opaque barrel plastic, so plastic was similar at least to blind cap plastic though hard to say exact piece of stock cut into both pieces. But, barrel held ink. Cap and blind-cap didn't. Barrel often ambers to some degree, yielding differnce between barrel and cap/blindcap. Silver pearl shows this this most.
And... sometimes Blind caps are replaced.
-d