Blind spots in Irish philately

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Blind spots in Irish philately

Notapor Rein » 26 Mar 2019 18:40

The 1922 definitives of Ireland lasted for some 45 years in which quite naturally various types of paper [and watermarks] were bound to be used.

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Only one watermark that was sideways in certain cases...
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:36

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What is extremely good in Stanley Gibbons is the mention of the sizes of the watemarks!

Ranging from 8mm to 10mm....

But the explanation is partly rubbish. Shrinkage, pressure or speed have nothing to do with it OR it should be mentioned with ALL watermarked stamps. Slight variations in size or shape are rather due to inaccurate shaping of the pieces of metal fixed to the dandy roll.

Maybe 2 dandy rolls had been used but why not list the stamps that have the corresponding waterma?
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:38

There is no mention of different types of paper in other publications!

Murray Payne lists them as follows:

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Murray Payne mentions the use of "cream paper" for the 6d! But not for the higher values 2'6,5'and 10'.

He apparently does not know what to do with them as obviously the "chalky" ones are out of the KGVI range :)
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:39

In these series the discussion of what is chalky paper is avoided!

Stanley Gibbons "locuta est" that only coated papers that react to the "chalk test" is chalky!

Recently it has been proven that chalk it self had nothing to do with it, but it is the presence or absence of caseine vs kaoline that played a role ;)
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:40

No tear and wear - just 3 [or 4] different size/shapes of the "e" watermark!

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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:41

The second stamp shows very clearly the twill binding of the sieve of ther papermachine!

Twill bindings are asymmetrical - the steepest of the diagonals goes downwards [judging from left to right]

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The mirrored version we will meet in this series as well :)
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:43

If you do not see what the blue lines refer to!

Turned 60 [57] degrees clockwise:

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Turned 70 [68] degrees anti-clockwise:

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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:45

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How can a respectable firm such as Stanley Gibbons claim such rubbish????

Different dandy rolls? OK, but just two?

Shrinkage, pressure and machine speed?

Why not in the 1922-1940 period with likely lower comfortable conditions?!


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The two in the middle show different heights and shapes!

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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:46

Also later on - the "e" watermark - we can observe differences WITHIN a single stamp:

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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:47

As to the colour of the papers, Murray Payne mentions the "cream paper" for just the "e" watermark.

But the 6d is always different!!! Not as far as the front of the stamp but for the back!

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The watermark of the 6d seems almost invisible!
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:49

Mint stamps with different colours of the papers or so it seems!

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And still the watermark of the 6d hardly visible!


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Which one is the 6d???
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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:51

According to Murray Payne stamps also occur with inverted watermark!

How can you tell???

In especially the 6d????

On Ebay

https://www.ebay.co.uk/itm/IRELAND-1923 ... 1940675004

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But is this really inverted???? The "S" normally has a bit larger lower half.

Judging by the damaged teeth the turn-over is peculiar?

Or has the stamp been turned over along a horizontal axis??

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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:53

peterh

Post subject: Re: Blind spots in Irish philately - watermarks

PostPosted: Sat Sep 29, 2018 12:44:25 pm

Rein - your scan of the SG listing is very very old!

The statement in the current catalogue is the same about the dandy rolls. The inverted watermarks are all now listed in SG.

Chalky paper is now termed chalk-surfaced paper and the comment about it only responding to the chalky test has been removed.

The cream paper 6d is not there, just the comment after the 1940-68 issue about a wide range of shades and also variation in paper in the issue generally.

Perhaps the 6d only exists in cream paper whereas the other values are found with different papers.



Peter,

Thanks!

The SG British Commonwealth is from 1971, the Murray Payne is the latest I presume...

Does SG tells us what the different papers are?

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Re: Blind spots in Irish philately

Notapor Rein » 27 Mar 2019 05:55

The original watermark "SE" with or less the same size circles/ovals!?

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