| Type B of Pettigiani is a well-known one
rather referred to as Austrian (Austriaco).
This paper was manufactured by the Austrian paper mill of Curt Berger. No trace of him in the WWW ;) As trama it is referred to as "granulado" as it still has a symmetrical paper mesh but the rhombos are not so clear as with its predecessor! This type of paper had been used around 1928 for the Airmail stamps and the 1 peso of the José de San Martin issue of 1923! The main difference with the use of this paper in the P&R I period is the fact that the felt side had always been gummed resulting in a "RA" reading from the back of stamp. Pettigiani does not seem to have noticed that apart from the smaller suns the horizontal distance between 2 alternate suns - i.e. along the line of AЯ - is 32mm instead of 35mm for most other wavy rays and straight rays watermarks! |