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PIlot 823 seamlines?

DrManhattan

By DrManhattan
in Japan - Asia

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DrManhattan NOS (New Old Stock)

DrManhattan

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would you say these are seamlines that haven't been polished out, scratches, or a precursor to cracking? This pen was sold as "brand new".

20221229_034313.thumb.jpg.1316c4f8c30e65cf038253e1fe3951ce.jpg 20221229_034231.thumb.jpg.5a93340c2362008503302f2d9f1c99fe.jpg20221230_234153.thumb.jpg.e243ce87146e60870424ad2a051ff65c.jpg

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jmccarty3 Antique

jmccarty3

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That would worry me. I have an 823 that developed a crack in the same area. I sent the pen to Ron Zorn, who was able to weld the crack, and the pen has worked fine ever since.

Rationalizing pen and ink purchases since 1967.

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DrManhattan NOS (New Old Stock)

DrManhattan

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But wouldn't a crack be black in appearance? This is a greyish line, I think it's just a surface scratch or it's a seamline that hasn't been polished away

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stan Collectors Item

stan

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Seam is normal in many pens with plastic threads.

stan

Formerly Ryojusen Pens
The oldest and largest buyer and seller of vintage Japanese pens in America.


Member: Pen Collectors of America & Fuente, THE Japanese Pen Collectors Club

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Harold Mint

Harold

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It looks like an unusually poor polishing job by Pilot where they've let the seam that's always going to be present inside the threads extend into the barrel. You can check if there is a similar looking line in the cap threads on the opposing side, because the injection mould has two halves that are pressed together. If there is a similar line, then they just polished the barrel below the threads poorly on one side. If there isn't, it's 100% certain to be a crack.

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DrManhattan NOS (New Old Stock)

DrManhattan

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@Harold Yes directly opposite the scratch (at least to my eye), is another grey line on the threads, though it does not extend downward onto the barrel at all.

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Harold Mint

Harold

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No worries then, it just looks like they polished it properly on one side and didn't do such a great job on the other side. The lines inside of the cap threads are supposed to be there(they're almost impossible to remove in an efficient manner). Maybe they use a jig and a machine for the polishing, and something wasn't quite lined up right.

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stan Collectors Item

stan

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Seam is normal in many pens with plastic threads.

stan

Formerly Ryojusen Pens
The oldest and largest buyer and seller of vintage Japanese pens in America.


Member: Pen Collectors of America & Fuente, THE Japanese Pen Collectors Club

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stan Collectors Item

stan

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Seriously doubt they polish out the seams. Too difficult and time consuming in the threads. Polishing would also remove the sharp edge at the top of the thread.

stan

Formerly Ryojusen Pens
The oldest and largest buyer and seller of vintage Japanese pens in America.


Member: Pen Collectors of America & Fuente, THE Japanese Pen Collectors Club

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Harold Mint

Harold

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3 hours ago, stan said:

Seriously doubt they polish out the seams. Too difficult and time consuming in the threads. Polishing would also remove the sharp edge at the top of the thread.

That's not what we're talking about, though. On DrManhattan's pen, they clearly didn't polish the barrel all the way up to the cap threads. The same goes for the back of the pen; those threads are internal, so there is absolutely no issue polishing away the seam on the outside of the barrel. Since the barrel is symmetrically unpolished on both ends, that would suggest a machine rather than a human hand.

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DrManhattan NOS (New Old Stock)

DrManhattan

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Just in case anyone would like to know; I contacted Pilot directly and sent them some photos and they said that it looked like they were production marks from the injection moulding process. They specifically referred to it as a "parting line" and said it was not considered a functional problem.

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A Smug Dill Museum Piece

A Smug Dill

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Good to hear your pen has been confirmed by the manufacturer to be AOK and as it should be.

I endeavour to be frank and truthful in what I write, show or otherwise present, when I relate my first-hand experiences that are not independently verifiable; and link to third-party content where I can, when I make a claim or refute a statement of fact in a thread. If there is something you can verify for yourself, I entreat you to do so, and judge for yourself what is right, correct, and valid. I may be wrong, and my position or say-so is no more authoritative and carries no more weight than anyone else's here.

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