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Thread: Yellow bubble percentage breakdown - entire vintage line *LOOK*

  1. #1

    Yellow bubble percentage breakdown - entire vintage line *LOOK*

    I don't know if this information will be useful to anyone, but I found it interesting. I was curious about the approximate percentage of each series of MOC's that had yellow bubbles. While this certainly isn't exact, I think it gives a pretty good snapshot of the overall line.

    These numbers were pulled from AFA's population report a few months ago. The report is broken down to how many were graded with a "Y" designation at the time of grade. This of course only takes into account MOC's that were sent to AFA - but there is a total of over 45,000 accounted for here, so the sample size is decent. It also doesn't take into account how many have turned yellow since they were graded.

    It's interesting to see that only 1.7% of 12 backs are yellow, while 75.2% of the POTF series was. In fact, 33.7% of all graded MOC's have a "Y" designation.









    Last edited by Miss_the_80s; 03-05-2012 at 09:14 AM.
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  2. #2
    That's a most interesting breakdown!
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  3. #3
    Man, I hate yellow bubbles...

  4. #4
    This seems counter intuitive. The older bubbles have stayed clear, while the later bubbles have turned yellow.

  5. #5
    I also find it interesting that the 45 and 47 backs have an unusually high yellow ratio. Lousy plastic batches, perhaps?
    - Aaron

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  6. #6
    Quote Originally Posted by Bonsai_Tree_Ent View Post
    This seems counter intuitive. The older bubbles have stayed clear, while the later bubbles have turned yellow.
    Different plastics were used.

    The sample isn't bad, but it probably understates the frequency of yellow bubbles. Many collectors won't send yellow bubble figures to be graded. As such, the population is already presorted.
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  7. #7
    Thanks for putting that together. Yellow bubbles are probably much more common since many yellow bubbled carded figures are not sent in for grading. The ratios between different card backs may be the more accurate information then overall incidence of bubble yellowing for each individual card back type
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  8. #8
    Quote Originally Posted by BillCable View Post
    Different plastics were used.

    The sample isn't bad, but it probably understates the frequency of yellow bubbles. Many collectors won't send yellow bubble figures to be graded. As such, the population is already presorted.
    That's an excellent point. Reality is likely higher than these numbers.
    - Aaron

    My For Sale thread: http://forum.rebelscum.com/t1070991/
    My seller feedback: http://forum.rebelscum.com/t1073565/

  9. #9
    Quote Originally Posted by BillCable View Post
    Different plastics were used.

    The sample isn't bad, but it probably understates the frequency of yellow bubbles. Many collectors won't send yellow bubble figures to be graded. As such, the population is already presorted.
    It still gives a pretty good snapshot of the yellow bubble situation on all series of MOC though, although it's probably old news to most (Yellow ROTJ/POTF compared to SW/ESB has been known for ages) it's cool to use the AFA pop report for something half useful

    I agree with you Bill that many submitting MOC won't send in yellowed bubbles to grade but ultimately it still shows that there are more clear SW & ESB MOCS out there to choose from and submit for grading than there are clear ROTJ & POTF.
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  10. #10
    I remember Jay posting a similar thing based on his own research a few years back, thought it would compliment the discussion a bit and besides he never posts any more so he will probably miss this thread!

    Quote Originally Posted by jaymassive619 View Post
    I posted this on a similar thread that asked why Palitoy ROTJ tend to have clear bubbles whilst ROTJ Kenner are mostly yellow on another vintage forum so this may help a bit here

    SW Kenner 99% Clear 1% Yellowed
    SW Palitoy 99% Clear 1% Yellowed

    ESB Kenner 70% Clear 30% Yellowed
    ESB Palitoy 85% Clear 15% Yellowed

    ROTJ Kenner 10% Clear 90% Yellowed
    ROTJ Palioty 70% Clear 30% Yellow

    Kenner POTF 1% Clear 99% Yellowed
    Palitoy Tri Logo 99% Clear 1% Yellowed

    There was definitely a change in the plastics that started on the ESB wave.

    By the time ROTJ MOC's were released by kenner in the US this new plastic (that we now know is prone to yellowing) was mainly used.

    As Craig highlighted Palitoy used a wide mixture of bubbles for the ROTJ line. The actual European produced bubbles made at Palitoy and later the Tri Logo bubbles must have used the earlier type of plastic that stays clear (at least until the present day what the future holds is anyones guess)

    Ive spent a lot of years studying MOC and hunting clear bubble examples and i stand by the percentages listed above.
    I am sure either Jay or someone else even went back and looked at the worlds Oil industry throughout the late 70's and early 80's as well in another thread to kinda see where the oil used for plastic was coming from and where certain countries got their supplies from.

    Interesting stuff for us geeks!
    Last edited by Joe_O; 03-03-2012 at 11:18 AM.
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