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Ultra violet radiation of multiple crown Wilding definitives.

Cream and whiter papers.

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Paul Davey 101/10/2019 09:44:03
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I have not read the introduction to the part 3 and compared it with the previous edition. I don't collect Wildings. I spoke to the guy who wrote it however when I pointed out to him your postings here to ask his opinion. I am not posting his name here since that is his option and you do seem quite aggressive to people with a different opinion.

The article I mentioned is in volume 55 no 7 of PB (per Google). I suggest reading it. It maybe a good place to publish your work Fred.

Paul

Fred Sellars01/10/2019 15:09:18
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Hi Paul, thanks for your latest update this morning on the subject of papers.

As previously stated in a recent posting I have not purchased the part 3 (2019) edition.

Perhaps someone who has purchased the book can give further information on the matter in question, with regards to comparison of any changes that have been made of the introduction over paper variations .

Let's hope that someone responds other than yourself !

I reiterate that had these Wildings been Machins they would have been listed years ago, in relation to the varieties of papers found .

 

Edited By Fred Sellars on 01/10/2019 15:20:00

Fred Sellars10/10/2019 12:47:47
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As of yet Paul , no one seems to have found what you have stated .

Perhaps you was mistaken in your assumption over this issue ?

Paul Davey 110/10/2019 13:06:53
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Fred - since nobody has posted that seems a great assumption on your part. Have you read the introduction and article? Try the local library for the cost of an inter-library loan.

Fred Sellars10/10/2019 13:42:58
205 forum posts
67 photos

Dear Paul,

I assume nothing , it's you that is insinuating !

The facts speak for themselves .

Fred Sellars14/10/2019 22:48:23
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In my search for information relating to the study of papers used for printing postage stamps , I came across an interesting article created by Chris Mcfetridge of Brixton Chrome , a philatelic dealer based in Saint John , New Brunswick , Canada .

For anyone interested in the study of stamp papers , I suggest that you also read his article on the subject , the article can be found on the following web site .

https://brixtonchrome.com/pages/how-to-study-a-stamps-paper

If you collect or specialise in Canadian stamps , then this is the man to contact .

Fred Sellars23/10/2019 19:34:04
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There must have been several factors with regards to the changeover of papers to include optical brightening agents by the GPO back in 1962 .

The problem is, they did not explain as to the reasons why ( or did they ? ) .

Fred Sellars25/10/2019 10:04:57
205 forum posts
67 photos

It has mainly been the violet phosphors that has been the majority of my findings with regards to the differences in papers used to print the multiple crown Wilding definitives, by irradiating them with a long wave ultraviolet light .

This is defined due to the specific dates appertaining to their original issue dates .

All of the green phosphor definitives are printed on a cream type paper .

The blue phosphors covered both cream and whiter type papers from 1961 to 1965, but both the 8mm and 9½mm violet phosphors should have been on a whiter paper only ( according to the GPO ) , as they were issued from 1965 onwards .

The only non-phosphor definitive that should be on a whiter paper only,is the 4d deep ultramarine that was first issued on the 28th of April 1965, followed by the coil ones issued on the 31st May 1965, and later from booklets issued from the 16th August 1965 .

The fact is that I have discovered cream type papers of the 4d plain deep ultramarine both in sheet form and also booklets . Therefore it is quite obvious that optical brightening agents were omitted from some of the papers produced during this period .

One must always take into consideration the margin for error and this seems to be the case in both the 4d plain deep ultramarine and some of the papers used to print the violet phosphors post 1962 .

Whilst investigating the various paper types I also discovered a paper encrusted with luminous type fibres of which I have nicknamed " FIB'S ", please see my separate thread by the name of " Meet the FIB'S " .

It would appear that in philately there is always something new to be found even though these stamps have been in the public domain for over 50 years .

Please feel free to comment !img_20191024_174901.jpg

Fred Sellars31/10/2019 22:20:48
205 forum posts
67 photos

With the use of an ultraviolet light,I can see what the birds and the bees see .

Apparently the human vision has only got 3 cones, red, green and blue, the cones are photoreceptor cells and respond differently to types of light of varying wavelengths, they are responsible for our colour vision .

Most birds are tetrachromatic possessing 4 types of cone cells that enables them to see wavelengths of light into the ultraviolet, with most insects they have 2 types of visual pigments, 1 pigment absorbs green and yellow light (550 mm), the other absorbs blue and ultraviolet light (480 nm) .

It is because of my ability in the use of ultraviolet light I am able to see the variations in stamp papers and it can also cover certain inks and phosphor bands that have been used in the production of stamps .

Having mentioned the fibrous papers "FIB'S" discovered in my last post, I have decided to show you a view of the 6d values which contain them, please note, these fibres are not visual in normal light with the human eye and only by using a long wave ultraviolet lamp can they be seen .

This scan was taken in long wave ultraviolet light and later filtered into mono to enhance the fibres discovered .

They are certainly different from the normal papers found on Wilding stamps .

img_20190811_111020.jpg

Fred Sellars03/11/2019 17:42:55
205 forum posts
67 photos

As a follow-up to the 4d deep ultramarine from booklets shown in my last but one posting, I can now show you a scan of the same stamps but in sheet form showing the difference between cream and whiter papers in evidence to their existence, the stamps in question are on cylinder 16 no dot and they also include the sheet number .

These stamps ARE printed on a cream paper !img_20191026_140513.jpg

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