1956 50p San Martin in recess

[Rein]

The catalogization of this is in quite a mess, we have different colours, perforations, papers and watermarks!

First of all we have to mention that this stamp had been printed in recess on a Giori-press with the optino of using ONE plate and 2-3 different colours!

The medallion was always printed in a different colour than the colour of the frame.

At first the portrait had a bit darker blue - greyish or blackish - to goes with the imported papers from Wiggins Teape!

The later printings on Záraste papers ALWAYS have a greenish blue portrait!

to be continued. ...

[Rein]

Some time ago we had a discussion in this Foro:

Diferencias entre Pt.552 y 552b

Hola a todos. Necesito una mano para distinguir las dos variantes de este sello. Si alguien puede aportar scans de ambos, sera agradecido.

Saludos
Luis

Hola Luis, te paso mi "ficha" de este sello.
Los dos dentados, luego un usado que se nota muy bien el color verdoso, un nuevo que no tanto, y el raro impreso sobre la goma, que se vé verdoso por la goma amarillenta.
Te tenés que fijar en el tramado del óvalo detrás de la figura, y en el pleno de tinta del cuello del uniforme, que son los lugares donde más se nota la posible tonalidad verdosa.

The green portraits are the Zárst epaper printings!

to be continued ...

[Rein]

Luis:
La diferencia fundamental entre en 552 (o 552a) y el 552b no recide en el color, porque hay en ambos sellos muchas variantes de color y ni hablar si se trata de usados. LA DIFERENCIA ES QUE TANTO EL 552 COMO EL 552a SON TIZADOS EN PAPEL MPORTADO Y EL 552b ES PAPEL TIZADO NACIONAL. Lamentablemente, nuestro catálogo ex Petrovich no los diferencia como corresponde. Contestame si no sabés diferenciar un papel tizado importado de uno nacional
Saludos
Darío

Darío Bardi stressed the fact of the watermark having a smaller sun is the main kriterium for distinguishing the printings....

to be continued ....

[Rein]

The 50p in recess with 2 different watermarks - a parallel watermark and an orthogonal watermark.

The front of the stamp with a parallel watermark i.e. the line of AЯ is vertical, parallel to the direction of paper (eje de arrollamiento), the AЯ facing left; the paper wire is a-symmetrical with more or less horizontal lines [perpendicular to the direction of paper]



The back of that stamp:



Not just that we have a parallel watermark here - Wiggins Teape - we can clearly see the different colour of the portrait!

to be continued ...

[Rein]

The front of the stamp with an orthogonal watermark i.e. the line of AЯ is horizontal, perpendicular to the direction of paper (eje de arrollamiento), the AЯ is upright; the paper wire is a-symmetrical with more or less horizontal lines [perpendicular to the direction of paper]



The back of that stamp:



This is a Zárate paper printing! Mark the greenish portrait!

to be continued ....

[Rein]

Getitng back to the Giori print! The Giori process using 2 or more ink malls to ink the same cylinder or plate.

Just have good look at the blue ink within the portrait ellips - follow the red arrows ! - going to the right the colour will get more greenish!



to be continued ....

[Rein]

Orthogonal watermark, asymmetrical paper mesh, direction of paper parallel to the long side of the stamp - "M", comb perforation 13.529:13.182 23/29 teeth hor. /vert.:




Imported paper from Wiggins Teape!

AKA as Rayado Horizontal! With comb perforation 13 1/2:13 1/4.... The number of teeth along the short side: 23, along the long side 29!


to be continued ...

[Rein]

Orthogonal watermark, asymmetrical paper mesh, direction of paper parallel to the long side of the stamp - "M", comb perforation 13.529:13.666 23/30 teeth hor. /vert.:




Imported paper from Wiggins Teape!

AKA as Rayado Horizontal! With comb perforation 13 1/2... The number of teeth along the short side: 23, along the long side 30!


to be continued ...

[Rein]

Parallell watermark, asymmetrical paper mesh, direction of paper parallel to the short side of the stamp - "m", comb perforation 13.529:13.666 23/30 teeth hor. /vert.:




Imported paper from Wiggins Teape!

AKA as Rayado Vertical!?

to be continued ....

[Rein]

In the Bardi catalogue we find the follówing stamps mentioned:



Three of the 4 imported stamp papers are depicted above! Both Rayado Horizontal with different perforations and the Rayado Vertical with comb 13 1/2!

What about the Tela???? This must be quite common when judging by the prices!!!

to be continued ....

[Rein]

This stamp had been engraved by the Italian engraver Volumnio Cerichelli from Milano. As I had mentioned before in my postings on the Italian Connection!

viewtopic.php?f=66&t=1536&p=8067&hilit= ... tion#p8067

It looks like there was only one plate with several characteristics - little dots of spots - and one particular tiny dot that occurs in ALL stamps!

to be continued ...

[Rein]

The parallel watermark, direction of paper vertical, and a symmetrical paper wire - Tela!

Comb perf. 13 1/2:13 1/4 23/29!

to be continued ....

[Rein]

The parallel watermark, direction of paper vertical, and an Asymmetrical paper wire - Rayado Vertical but with "M"!!!!!

Comb perf. 13 1/2:13 1/4 23/29!

NOT mentioned in Bardi!

to be continued ....

[Rein]

The plate characteristics:

First example!









to be continued ....

[Rein]

The plate characteristics:

Second example!









And notice the dot in the O of 'NACION"!

to be continued ....