AFRA Revista September1957 number 113:
Which printing press is here??? An old press no longer in use! They brought the press in use again especially for this excursion!!!
Remember that the 40c San Martin had been printed on a sheet-fed press in that period! And that also the 40c San Martin had been applied with broken gum!!!! And so the 20c Guillermo Brown!
The Anthony Blank firm was responsible for gumming the Zárate paper!
to be continued ....