Correct. A floating plate number, too.
In this issue, you could have a straight edge in any position. In fact, in the corners, a straight edge in two positions is also possible. To give you an idea, here's an internet image of what a pane of 100 of the stamps would have looked like (note in this example the plate number is in the center of the single selvage):
Posted 10/07/2012 10:02 am
