Rein escribió:In 1954 the definitives started off with several values in recess printing.
Of which the 50p has at least 2 different watermarks - a parallel watermark and an orthogonal watermark.
According to the classification used in Argentina we have coated paper (papel tizado) that can be either imported (mate importado) or made in Argentina (mate nacional).
So which stamp has the national paper and which the imported paper?
Isn't it better to talk about parallel watermarks and orthogonal watermarks in the first place as this is a more general approach and hasn't got anything really to do with the origin of the paper manufacturer!
I get the feeling in the mean time that the whole "tizado" versus "satinado" issue is also as false as can be.
All recess-printed stamps by the Casa de Moneda de la Nacion - starting from the 1949 UPU commemoratives up into the 1980-ies have the base paper modified by applying a varnish or arabic gum derivative after a subsidual offset-litho printing but before the recess itself. This substance can be seen clearly in mint copies of those stamps but in used copies the "varnish' has more or less completely been washed off! What is still there has rather irregular surfaces and is often crackled. The real coatings don't have that crackling! Not only the large size commemoratives but also the definitives in recess have been printed on those tempered papers.
Not only that fact that the offset-litho has the varnish makes it highly unlikely the varnish paper was imported like that; in the Casa de Moneda machines that do apply a gumming to the paper reels may as well have been used for varnishing.
Please,. have a good look at your mint copies and compare them to your used one!
