P&R 1 10c Rivadavia in offset-litho

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P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

Although some find it exteremely difficult to tell typography from offset-litho, to keep things clear I think a separate thread for the offset-litho should be provided for.

The offset-litho has 3 types:

Type A:

Imagen

Type B;

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Type C:

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A and C have a round left collar, B has a pointed left collar.

Have a good look at the "A" 's of "Rivadavia":

type A:

Imagen

type B:

Imagen

the second leg of the first "A" is shorter!
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

In type A we have discovered some systematical "flaws" probably belonging to a root or base block, but this is not so certain ;)

Trying to establish a possible "base block" we are looking for characteristiscs that repeat them self and how regular ...

The 10c Rivadavia - certainly the typographed one - is full of characteristics in that respect that the sheet-fed stamps have some sort of base block, the reel-fed stamps do NOT have it! A sheet of 10x10 may have an unknown number of type II's AND type III's !

The 10c Rivadavia in offset-litho has yet to get studied. A first characteristic for type A has been found:


Imagen

Imagen

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We will see that this characteristic is to be found in several positions with no system in it!!

to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

This stamp with the Tela paper [1E3c] shows the 2 described characteristic with yet another one:


Imagen

A block of 30 [=5x6] of which the lower part only has the characteristics:

Imagen

4th row, 3rd from the left:

Imagen

6th row, 2nd from the left:

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6th row, 4th from the left:

Imagen

A strip of 6:

Imagen

1st from the left:

Imagen

3rd from the left:

Imagen

5th from the left:

Imagen

to be continued ....
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

A block of 30 [=5x6] of which the lower part only has the characteristics:

Imagen

2th row, 2nd from the left:

Imagen

2th row, 4th from the left:

Imagen

to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

A few samples of the characteristics with or without the white spot at the right:

with spot:

Imagen

Imagen

Imagen


without spot:

Imagen

Imagen


to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

The earlier referred to block of 30 [=5x6] does have more interesting characteristics than I had noticed at first:

1st row, 2nd from the left:

Imagen

Imagen

5th row, 5th from the left:

Imagen

Imagen

A total view:

Imagen

As we can all see, there is still no logic in the arrangement of the characteristics. Had it been just the ruptures in the horizontal lines we could have called it coincidence, but there are always accompanying features!

to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

In type B I haven't been able to find possible candidates for a root block.

Just one flaw that probably occurs only once per sheet;

Orthogonal watermark, asymmetrical paper wire - rayos rectos:

Imagen

Imagen

Imagen

Parallel watermark, asymmetrical paper wire - rayado vertical:

Imagen
Imagen

Imagen


Orthogonal watermark, asymmetrical paper wire - Zárate:

Imagen
Imagen

Imagen
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

The above flaw was not mentioned by Pettigiani in his Handbook - still this flaw occurs on ALL types of paper the 10c Rivadavia in offset-litho type B has!

As it is a not such a common flaw the probability that it belongs to the root block is nil. Therefor we may assume that

there was only ONE plate for type B
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

Sometimes a "nice" postmark can cover the best known characteristics of the types of the 10c Rivadavia in offset-litho!

Imagen

What to do????


to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

Imagen

Imagen

So it is type B printed on paper with a parallel watermark and an asymmetrical paper wire!
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por rubiera »

great detailed work!
tony
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http://arg3551.blogspot.com/
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

The 10c is still full of surprises!

As Tony has remarked several times,the age of good scanners gave us the possibility of very close scans of details we otherwise would have missed.

I do not fully agree! First of all we need to "scan" our stamps with our own eyes and magnifying glasses! Only then we will find the details of individual stamps as we would never have computer scanned ALL our stamps.

The computer scan enables us to display the discoveries and publish them so other collectors can easily see them...

And, true, occasionally while studying the already made scans, we suddenly see things we hadn't seen before :)

to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

Type A:

Imagen

Imagen

Type B:

Imagen

Imagen

to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

Type C in general:

Imagen


The new details:

Imagen

Imagen

Imagen



Imagen

Imagen

to be continued ...
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Re: P&R 1 10c Rivadavia in offset-litho

Mensaje por Rein »

Type C was found mainly printed on Zárate paper!

Just one single stamp on another type of paper!

Imagen

Imagen

Imagen

Imagen
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Who comes up with the second copy known!
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