Australian 2007 50c Green Spider Flower Colour Flaw??

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Darkice
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Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Darkice »

Green spider flower.jpg
Australia SG 2764 50 cent, Green Spider Flower (Grevillea mucronulata )
Self-adhesive
Perf 11.5
Issued 13 February 2007

Hi Folks,

Can anyone shed some light on this potential missing "White" colour flaw?
Found this one in a large 20kg kiloware from Philas Auctions back in March.
Running your fingers over the face of the stamp feels normal, looks normal and doesn't look tampered with.
For me the "2007" and "Spider Flower" & "White" top left corner can be seen as "Normal" if bleaching or sun exposure were involved.

Regards Mal.
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Rigs »

That ain't no bleach or sun exposure.

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Darkice
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Darkice »

Rigs wrote:
12 May 2021 11:59
That ain't no bleach or sun exposure.
Genuine you think?
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Allanswood »

Looks more like something "wrong" with the phosphor tagging.
There won't be any "missing white".

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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by stampchris »

Allanswood wrote:
12 May 2021 13:04
Looks more like something "wrong" with the phosphor tagging.
There won't be any "missing white".

I agree. It's possible the something got into the phosphor tagging and tinted it. Or there was a chemical reaction with the phosphor.
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Darkice »

stampchris wrote:
12 May 2021 17:24
Allanswood wrote:
12 May 2021 13:04
Looks more like something "wrong" with the phosphor tagging.
There won't be any "missing white".

I agree. It's possible the something got into the phosphor tagging and tinted it. Or there was a chemical reaction with the phosphor.
Thanks for the feedback folks,
So the next question is, with all the peel & stick stamps issued over the last 20 odd years has this happened before with other contaminated phosphor tagging or other tinted issues??

Mal
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The Pom
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by The Pom »

As suggested, this is simply an excessively heavy application of the phosphor. As with ink, it's applied in liquid form, and it dries to a visible grey colour if applied thickly enough.

It's not uncommon, and shows up better on some issues than others, according to the nature of the design. The 2008 Megafauna series is quite prone to it.

This is an extreme example - borders are normally white.


Pic636.jpg
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by The Pom »

The Pom wrote:
12 May 2021 22:54
The 2008 Megafauna series is quite prone to it.
For example:


IMG_0018.jpg
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Darkice »

The Pom wrote:
12 May 2021 23:06
The Pom wrote:
12 May 2021 22:54
The 2008 Megafauna series is quite prone to it.
For example:



Image
Thanks "The Pom" and other members for clearing this up. I do now vaguely remember seeing that example of the Megafauna somewhere.

Regards Mal. :D
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by Darkice »

Now that we know "Tagging" is uncommon, will ACSC list these guys in future Catalogues??
and is there a market for them??


Mal.
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Re: Australian 2007 50c Green Spider Flower Colour Flaw??

Post by The Pom »

Darkice wrote:
13 May 2021 15:40
Now that we know "Tagging" is uncommon, will ACSC list these guys in future Catalogues??

Mal.
Hi Mal,
Feel free to correct me, but I'm getting the feeling that you have interpreted the situation as being:

"Some stamps have phosphor printed on them (tagged) and others of the same design/issue don't have this phosphor. The ones with phosphor all have visibly greyish areas, are uncommon, and merit separate catalogue status".

i.e. you're suggesting that the 55c Thylacine shown previously comes +/- tagging.

This is not the case. They all have phosphor tagging, there are not 2 separate types of this stamp, so would not be catalogued separately. If you look at the upper left portion of the right-hand thylacine stamp, it still has a slight greyish/misty tinge to it.

The only difference is that in some cases, an excess of phosphor gets applied, to the extent that it becomes visible to the naked eye - much like any other slight over-inking.
Always on the lookout for Australian pre decimal First Day Covers.

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