France Decaris Rooster Stamps 1962 And 1965

I would like to show you this group of French stamps with the Decaris Rooster design, and ask you a question about the phosphorescence on these stamps.
In the first line there are two pairs from 1962, I know that this is the case due to their cancellations in 1964 and its 0,25 value, it is also seen that their color varies with respect to the later 1965 model, this 1964 issue is 1500000 copies, of these pairs one reacts to UV light with a bluish glow.
The second and third rows are from the 1965 broadcast, I know this because of its cancellations.
Second line:
-the first and second are 1965, react to UV,
-the third are 1966 does not react to UV,
-the fourth and five are a couple from 1967 that reacts to UV,
The third line is a vertical pair canceled at 67, which reacts to UV.
I don't know the date of the last line, of these 3 are UV-reactive and one is not.
Now the question is, only in stampworld have I been able to find a reference to the phosphorescence of these stamps but it only talks about the 1962 issue and a fluorescent yellow paper...Where could I find more information?

There's a description in Maury. I don't have time to copy it at present.

Several thoughts come to mind:
1. The cancel date is only partly helpful as it eliminates varieties issued later. Stamps can sit around for many years before getting used. Your initial post here implies a strict printing and immediate use sequence, which is highly unlikely on a small random assortment. Be careful about reading too much into the cancel dates.
2. Like your recent threads on the Machins, you are apparently trying to learn from used stamps of unknown washing/handling history. This can lead to pitfalls.
3. Like with your Machin efforts, don't get caught-up in only the UV aspects. one should look at EVERY feature when trying to ID a stamp - the perforations, paper, color, tagging, etc, especially with definitives which often span many years and similar printings.
4. If you really want to go this deep into these stamps, then it will require investment in the appropriate detailed literature, often far beyond the internet.
5. I don't want to discourage you, but you may be making this harder than it should be.

UV lamps, rarely emit only UV. You can see the violet light they emit.
Often 'fluorescent' paper is a paper with an optical brightening agent added to the coating that makes it appear whiter under an uv-lamp but is nothing like the coloured fluorescent agents added to paper or even to phosphor.
If you hold a UV lamp over a white piece of paper that has not been treated, there will be some reflection of the 'uv' lamp's visible violet light.
Some coatings absorb the uv light better than others: e.g., some of the Irish architecture definitives have a clay-coating that turns dark under a UV lamp.

Apologies for quality - this is a tricky book to scan.

great!!! I am truly grateful!!!

I found among my roosters, this couple that may just be my impression... but it could be the egg mentioned in the catalogue... I say this because it is a notorious ball that does not appear in other copies... what do you think?
Additionally, I found this French page with a lot of information about phosphorescence in French stamps with a lot of photo.
http://cpl14.fr/?p=3553

What is important about that stamp is that several new technological developments were tried. Wasn't it the first,or one of the first, with tricolor printing?

So as with the first round of new printing methods, there were plenty of very collectible glitches.

Phosphorescence and fluorescence are two completely different things. However, sometimes, a fluorescent additive is added to phosphor ink.

In order not to open a new theater, I would like to show you in this one, which I opened some time ago, a stamp that I was very excited to find and I think I finally caught it, it is the golden rooster of Dacaris. It is very difficult to photograph under UV and bring out its golden color with intensity, but I think it can be seen slightly in the photos. I am really very happy with this find.

Considering all stamps are visible, you are showing fluorescence. Phosphorescence is seen as afterglow. Hold the UV-lamp over the stamps. Hold your camera ready: use shoe boxes or a stack of books to lay your phone on and lay the stamps at the foot of the stack. Turn off the lamp and take the picture. The one with phosphor should (briefly) glow in the dark when the others almost immediately become invisible. You should do this in the dark.

Often, a fluorescent agent is added to the phosphor and the colour is visible. That may be the case with your stamp. But if your purpose of showing the back is to let the same stamp stand out, keep in mind that phosphor, often is added to the coating or printed. You cannot see it from the back unless it is mixed into the pulp. Your second picture raises the question if someone soaked the stamp using washing-up liquid with a brightener added. It is typical fluorescence not phosphorescence.

It also does not appear yellowish gold, but that can be due to the picture.

Edit: from the pages posted by GeoffHa, you question about phosphorescence is irrelevant. You are looking for a pale yellowish or yellowish gold fluorescence. I have difficulty seeing your stamp as a yellow fluorescence.

I think this is what you are looking for.

thanks NSK!!! My stamp is golden yellow like that, but the closer I bring the camera to photograph the less I capture the golden color...

Nice. Than you have that special issue you were looking for. ¡Felicidades!

Thank you, I am very happy with the find, I really wanted to find it. Furthermore, I will no longer have to buy tons of more roosters... now I will simply settle for seeing if it has the black sun, I no longer need to take home all the stamps from this model that I find. The black sun will be my next challenge to achieve for this beautiful model full of surprises....

New additions have arrived at my rooster farm... I have obtained two new golden rooster specimens, one in MNH condition... I hope that its yellow effect can be seen well in the photos...