Servicio Oficial or S. Oficial - How many types???

[Rein]

Stamps for official use had an extra "text" applied on top of the normal definitive stamp...

I am careful not to use the word "overprint" as in most cases the text "Servicio Oficial" [in 1 or 2 lines] or "S. Oficial" had been applied directly after printing the "base" stamp! In some cases it may be even so that the base stamp had been printed on top of the "official" text!

Traditionally the catalogues do recognize up to 16 different types of text depending on the fonts used, the length of the text, etc...

No one did bother to take the method of printing into account!

It was Ángel Fredy Yedro in his "Sobrecarga SERVICIO OFICIAL de 12mm ¿Cómo fue impresa?" who started to question the various possible methods of printing used!

So we have a beginning but still a lot to do!

to be continued ...

[Rein]

Comparing the various types as the illustrations in the catalogues do not always give enough detail to tell them from each other!

Servicio Oficial in 2 lines:

types I, II and XVI

Servicio Oficial in 1 line:

types III, IV, V, VII, VIII, IX and X

S. Oficial in 1 line:

types VI, XI, XII, XIII, XIV and XV


- Are III and VII really different???
- Are IV and VIII really different???
- Are I and XVI really different??

to be continued ....

[Rein]

Bearing in mind the method of printing used for the base stamp, which combinations do we find???

Base stamp + S.O.???

- typography + typography
- offset-litho + typography
- offset-litho + offset-litho
- recess + typography
- photogravure + typography
- photogravure + photogravure

And what about the stamp sizes???

When the stamp size is different the printing form [of the S.O] can NOT be the same!

But do we have found out in our earlier studies of the P&R I that the same plates had been used for several denominations??

What about the photogravure printings? All from the same cylinder on the Mailander prinitng press??? Or several prints using the same cylinder mounted up side down???

Certainly NO stamp printed on the Goebel rotary that was introduced late 1968!

to be continued ....

[Rein]

Type XIII is the easiest - it seems- to get in order!

Just stamps printed in bicoloured offset-litho OR bicoloured photogravure!

However, 3 different offset-litho plates involved at least!

- S.Oficial running parallel to the long side of the stamp [small size] -10c amd 20c Animals
- S.Oficial running parallel to the short side of the stamp - 2p,4p, 8p, 10p and 20p J. de San Martin
- S.Oficial running parallel to the long side of the stamp [medium size] - 2p Sarmiento, 4p and 6p Hernandez, 25p Quebracho, 45 Industry

to be continued ....

[Rein]

At least ONE cylinder for the bicoloured photogravure!

All running parallel to the long side of stamp - either ascendent or descendent or more centred or rather towards the edge...

- 1p Girasol
- 2p Sarmiento
- 3p Cuesta de Zapata
- 5p Tierra del Fuego
- 10p Puente del Inca
- 20p Nahuel Huapi
- 23p Quebracho
- 25p Quebracho [colour is red!]
- 43p Industry
- 45p Industry
- 50p J. de San Martin [colour is red!]
- 90p G. Brown

Most - if not all - have the direction of printing - where the ink flows - upwards in relation to the line "S. Oficial"! Exceptions possible in the printings of the 1p Girasol....

to be continued ...

[Otin]

Rein,
What do you mean by bicolored photogravure? The only one I know for sure is the 1peso Ganadería with blue overprint and perhaps the 20 pesos double impression shown by Fredy. Saludos,
José

[Fredy]

Hola amigos:
Sin animo de polemizar, creo que el tema de impresión bicolor ya se discutió oportunamente y no estoy de acuerdo con ese concepto.
Por otra parte, para clacificar las sobrecargas por sistemas de impresión, creo que los catálogos no nos ayudan y se debería partir de cero. De hecho, en mis estudios no los he tenido encuenta y siempre me he remitido a la información que encontré en Casa de Moneda.
De todas maneras, todo aporte al estudio de la serie siempre es bienvenida.
Saludos.
Fredy

[Rein]

Rein,
What do you mean by bicolored photogravure? The only one I know for sure is the 1peso Ganadería with blue overprint and perhaps the 20 pesos double impression shown by Fredy. Saludos,
José

José,

the long list above including the Quebracho's have photogravure type XIII combined with the base stamp in photogravure! Just have a good look! It is not just the 1p Ganaderia! And certainly NOT the 20p JSM!

saludos, Rein

[Rein]

Hola amigos:
Sin animo de polemizar, creo que el tema de impresión bicolor ya se discutió oportunamente y no estoy de acuerdo con ese concepto.
Por otra parte, para clacificar las sobrecargas por sistemas de impresión, creo que los catálogos no nos ayudan y se debería partir de cero. De hecho, en mis estudios no los he tenido encuenta y siempre me he remitido a la información que encontré en Casa de Moneda.
De todas maneras, todo aporte al estudio de la serie siempre es bienvenida.
Saludos.
Fredy

Fredy,

despite the publication of the excellent book by Merlo on th emethos of printing, we still have a deplorable lack of knowledge or rather lack of interest [?] when printing methods are concerned!

The catalogues do not help us a bit!

Apart from using the available data in the archives it is good to have our own observations of the stamps we can see and touch everyday. Usually so much more is to be found there than in the archives that are usually creamed off year by year....

saludos, Rein

[Rein]

To get on with type XIII I would leave the 1p Girasol alone for a while as that stamp has an ultimately difficult history and so many printings!

Most examples shown here have clearly visible doctor blade flaws that point to the use of photogravure in case you have any doubt! Also the ink is flowing upwards as can be seen from the details...

The 2p Sarmiento, direction of printing L [to the left]:





to be continued ...

[Rein]

Most examples shown here have clearly visible doctor blade flaws that point to the use of photogravure in case you have any doubt! Also the ink is flowing upwards as can be seen from the details...

The 3p Cuesta de Zapata, direction of printing U [upwards]:




to be continued ...

[Rein]

Most examples shown here have clearly visible doctor blade flaws that point to the use of photogravure in case you have any doubt! Also the ink is flowing upwards as can be seen from the details...

The 5p Tierra del Fuego, direction of printing U [upwards]:




to be continued ...

[Rein]

Most examples shown here have clearly visible doctor blade flaws that point to the use of photogravure in case you have any doubt! Also the ink is flowing upwards as can be seen from the details...

The 20p Nahuel Huapi direction of printing L [to the left]:




to be continued ...

[Rein]

Most examples shown here have clearly visible doctor blade flaws that point to the use of photogravure in case you have any doubt! Also the ink is flowing upwards as can be seen from the details...

The 43p Industry direction of printing R [to the right]:




to be continued ...

[Rein]

Most examples shown here have clearly visible doctor blade flaws that point to the use of photogravure in case you have any doubt! Also the ink is flowing upwards as can be seen from the details...

The 45p Industry direction of printing L [to the left]:




to be continued ...