5¢ Blue 10UR100
While the position is suspect, these marks may not have been guides to separating the sheet into the four panes.
Guide dots and guide line in the bottom margin at right.
Comments
Matches the example in Marler's personal collection.
While the position is suspect, these marks may not have been guides to separating the sheet into the four panes.
Guide dots and guide line in the bottom margin at right.
Comments
Matches the example in Marler's personal collection.