Saturday, February 7, 2009

Measurement of the 1E1 grid

As explained by Rein (member of Stampboards), the direction along which the ellipses are longest in this paper is the direction in which the roll was made. Here are two examples. I find the grid aligned in the horizontal direction in reference to the RA. If the grid was found running along the perpendicular direction, that would constitute a separate watermark.