The Argentina 1935-51 Definitive Series
A Stamp Collecting Blog Dedicated to one of the Most Interesting Series of the 20th Century
Saturday, February 7, 2009
Measurement of the 1E3 grid
Here are two examples. I am not able to determine a direction for this roll based on the elongation of the dots.
The watermark can sometimes be somewhat unclear for the 1E3 paper.