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The aspect discussed in the previous posting is just as important for the last group of papers dealt with in Pettigiani's book! The no watermark papers also originate from the Zárater paper mills although from a much earlier period! In the 1945-1948 period practically all stamps were printed on paper without watermark. The paper mesh always reflects a wire structure that was symmetrical. Pettigiani recognizes 2 main types - just as Dario Bardi did: R = grené, i.e. the rhombos are very clear; and S = trama cerrada or "closed wire" were you can not see the rhombos; only during the 1947-1948 period. The reference in the commemoratives is MT 491 = 24.11.1947 Return of the Ashes of San Martin's parents, printed in offset-litho This reference is a bit strange as other types of paper had been used as well for this stamp i.e Rayos Rectos Nitidos! MT 488 = 05.10.1947 Fregat Sarmiento MT 492 = 24.12.1947 5c Cruzada Escolar can have both R and S! And the Cruzada Escolar exists also on Rayos Rectos Nitidos! Pettigiani sees 3 subtypes of S - of which 2 show only very minute pin points when holding the stamps against a strong light source. And when there is a hue of sheen a reference was made to the Satinado. This subtype had also been called the Canadian paper believing it originates from Canada. |
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The ashes of San Martin's parents: No watermark, symmetrical paper mesh, longitudinal direction of paper - "M":
at first sight not a trace of paper mesh! But with a latitudinal direction of paper - "m" we can already see the rhombos:
Combining the two:
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The 5c Cruzada Escolar: No watermark, symmetrical paper mesh, longitudinal direction of paper - "M":
at first sight not a trace of paper mesh! But with another stamp we can already see the rhombos:
Combining the two:
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The 5c Fregat Sarmiento: No watermark, symmetrical paper mesh, longitudinal direction of paper - "M":
at first sight not a trace of paper mesh! But with another stamp we can already see the rhombos:
Combining the two:
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The 5c Antarctic 25.05.1947: No watermark, symmetrical paper mesh, longitudinal direction of paper - "M":
At first sight not a trace of paper mesh! Although!?!? But at close distance we can see the tiny pin points!
The pin points have got nothing to do with the paper mesh structure but probably with the way the water got drained out of the paper pulp during the paper making process... |
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The 20c Antarctic 25.05.1947: No watermark, symmetrical paper mesh, longitudinal direction of paper - "M": the paper mesh visible:
the paper mesh not visbile at first sight:
and the enlarged detail:
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[quote="leonardoleidi"]Thank you very much Rein, because of the comparison with stamps of other series.!!!!![/quote] Leonardo, comparing the types of papers with the ones used for the commemoratives is necessary as it often gives you a better chronological range for a certain type of paper as it does for the no watermarks, the Rayos Rectos Nitidos, the Delgado, etc.! Also of great importance is to know what type of printing method has been used as most types of paper are method specific or they rather should be! By now we have dealt with the types of paper fair enough. By the time we get to the individual stamps we may have to get back to a particular type of paper or its subtype.... Time to get on..... |
