France 1966 Coat of arms Saint-Lô

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Re: France 1966 Coat of arms Saint-Lô

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Six tiny dots that have been reproduced - at least in my counter sheet of the -1.12.1966 - in 8 of the horizontal rows!! Not every stamp in these first 8 rows have all of the 6 dots, but at least several are present...
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Re: France 1966 Coat of arms Saint-Lô

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Would a commercial producent of photogravure cylinder go that far as to bother about the identical appearance of stamps? To such a far degree????

Would they have bothered to screen the individual stamp image first before using a step-and-repeat machine to prepare a multi-positive???

Or did they have the single stamp image [i.e. the colour extract of blue] in a kind of Hell Helio-Klischograph machine and had the engraving needle follow a pattern set in the computer program??
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Re: France 1966 Coat of arms Saint-Lô

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The various cylinders so far recognised in terms of screens:

- blue 6.5 dots/mm horizontally, 9 dots/mm vertically - is the one from the private industry and has ALL stamp images exactly the same as screen dot arrangement!

In combination with red horizontal rhomboids that count 8 dots vertically and:
- silver dot arrangment under +50 and -30 degrees; gold R80 [cross screen]
- silver dot arrangment under +50 and -30 degrees; gold R70 [cross screen]
- silver dot arrangment under +40 and -40 degrees [rhomboids]; gold R70 [cross screen]; 1 copy found

The first 2 combinations found both without phosphor bars [1966-1971] or with phosphor bars [1971-1972].

A fourth combination of this blue with red rhomboids that count 6 dots vertically so far only was found in combination with both silver and gold have a dot arrangment under +40 and -40 degrees [horizontal rhomboids]. Among them a date of November 1973 plus a plate flaw that Marion assigns to blue cylinder "k". Cylinder "k" was dominant in the February 1971-June 1972 period. According to Pierre Marion only red cylinders "E" and "F" were used inthat period and both were supposed to have come from the private industry!
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Re: France 1966 Coat of arms Saint-Lô

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In the period in which supposedly all cylinder were prepared in Périgueux AND all stamps have phosphor bars, we find 3 types of blue:

- 7 dots/mm hor. and 8 dots/mm vert.; red 8 dots/mm vert.; silver R80, gold both R80 and R70,
- 8 dots/mm hor. and 7 dots/mm vert.; red both 8 dots/mm and 6 dots/mm vert.; silver and gold R80,
- 9 dots/mm both hor. and vert. [R125]; red 8 dots/mm vert.; gold R80 but for silver we got 3 versions:
-- dot arrangment under +50 and -30 degrees,
-- R80,
-- R100.

The +50/-30 version is most likely an old cylinder coming from the private industry!

Pierre Marion does not give any information about the silver and gold cylinders!

Isolated uses of cylinders provided by the private industry in the late 1973-1978 period occur according to Pierre Marion in the printings of:

- red "E" combined with blue "k" in June/July 1976; blue "l" February 1976, June 1976; blue "p" in January/February 1976 and July 1976,
- blue "k" also combined with red "J" in March 1977.

Red "E" being the cylinder with 6 dots/mm vertically?!?!?!?!?
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Re: France 1966 Coat of arms Saint-Lô

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Corner date block of 4 with 24.2.71:

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has blue 6.5/9; red 8/vert. [according to Pierre Marion red cylinder "E" plus blue cylinder "k"]; silver +50/-30 and gold R70!

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The 7th printing:


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Cylinder "E" has the red cylinder with 8 dots/mm vertically which is proof that I was WRONG earlier on today!
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Re: France 1966 Coat of arms Saint-Lô

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The blue dot between "o" and "s' in sheet-position 90 is the characteristic of the blue cylinder "k"

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Re: France 1966 Coat of arms Saint-Lô

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The "l" blue cylinder with 8/7 dots/mm hor./vert. is a new cylinder made by the printers themselves according to Pierre Marion that has different screen dots arrangements per stamp.

The gold and silver cylinders have a -40/+40 degrees [rhombic] screen:

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The "F" red cylinder has 6 dots vertically. Compare the blue dots [7/mm] with the red dots [6/mm] along the vertical lines!

Per stamp position different screening:


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Re: France 1966 Coat of arms Saint-Lô

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Getting more and more material of French stamps in photogravure in that period it leads me to the preliminary conclusion that the French specialsits - Pierre MArion in his booklet - was WRONG.

His assumption that he could split up in the printings of the 20c Saint-Lo in two groups- cylinder made by the private industry and those made by the Printing house itself was not wrong, it was just that his kriteria were false:

- the change in position of the red registration bar from next to stamp 70 to stamp 10 has nothing to do with his assumption;
- there not just the red cylinders should be grouped differently but also the blue cylinders.

The 1967 Grenoble sheet has the bar next to 35 [turn the sheet 90 degrees anti-clock-wise]:


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The 1969 Floralies sheet has the bar next to 5 [turn the sheet upside down]:

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Both stamps issued BEFORE the move to Perigueux and WITHIN the "private industry" period .............

This would mean that ALL cylinders with a rhombic [losange] arrangement of the screen dots belong to the "private industry" and that ONLY in 1975 the first Perigueux made cylinders came into use ... That is, the red J and K cylinders and the blue P,Q and R cylinders.
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Re: France 1966 Coat of arms Saint-Lô

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Looking at some commemoratives we will see strange screens!

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Yellow and brown have alternately smaller and larger dots!

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Magenta has alternately smaller and larger dots!
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Re: France 1966 Coat of arms Saint-Lô

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The orange colour does NOT have a traditional cross-screen that comes from a glass screenplate!

The dots are autotypical i.e. surface-variable!

I mean the smaller, round orange dots at the bottom of the stamp; I should show a similar stamp with regular round dots at the edge. At may happen that I was too keen on finding Klischograph-made cylinders ... ;)

Another aspect in the images of the sheets is that both HEL-1 and HEL-2 sheets have the direction of paper [and printing] parallel to the short side of the stamp...
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Re: France 1966 Coat of arms Saint-Lô

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The 1971 Chameleon sheet has the bar next to 5:

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All WITHIN the "private industry" period .............
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Re: France 1966 Coat of arms Saint-Lô

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Direction of paper [and printing] parallel to the long side of the stamp; 1973, 1975:

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The sheet lay-out changed but the old lay-out did not disappear!

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Re: France 1966 Coat of arms Saint-Lô

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Some of the commemoratives have a very peculiar screen - looks like a cross-screen but the dots are small-large alternately!

1971 Chameleon:


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top:

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bottom:

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Both stamps have exactly the same dots arangements far as brown goes!
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Re: France 1966 Coat of arms Saint-Lô

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Some of the commemoratives have a very peculiar screen - looks like a cross-screen but the dots are small-large alternately!

1972 Tourisme:

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top:

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bottom:


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Both stamps have exactly the same dots arangements far as rose-red goes!
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Re: France 1966 Coat of arms Saint-Lô

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1972 Tourisme:

top:

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bottom:


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Both stamps have exactly the same dots arangements far as rose-red goes!
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