Getting back to the so-called Tizado Norteamericano we may question a few things again!
JB - the USA paper that combines both the rayado and the granulado!
It is supposed to have started in 1939 for the 5c Moreno and the 10c Rivadavia.
As with watermark type IV it should look like paper types G, JC and M! We'll see....
Apart from these 5c and 10c it should also have been used for the 1c Sarmiento and the 5c San Martin [1945]. Not forgetting the 30c Lanas, the 1p sin limites, the 2p Frutas and the 20p Cotton. The reference point for the commemoratives are the 1943 June Revolution stamps....
There are a few more stamps with this type of paper - Airmails - but the picture is clear.
The watermark is orthogonal, the paper mesh is symmetrical [!] but not with the usual density of about 30/20 but with 30/16!!!!! It could have been assigned - wrongly - a special type of Trama like the Tela [having the 24/20 density].
the 1939 5c and 10 have nothing to do with it!
to be continued ....
Pettigiani mentions for JB:
d) Las uniones horizontales entre soles son onduladas !!
But for JC:
e) La union horizontal entre los soles es curva formado una punta hacia arriba !!!
What we see in the 5c 1943 Revolucion is exactly that!!!! It matches JC!!!
to be continued ....