Sorry a Ccmplete cock up on my part I meant BK 78.
Perhaps it would be better if I started this topic again with the correct title.
I am not sure how much pictures will help as the part I am interested in is just the blank margin to the left of the stamps which attaches the pane to the booklet cover but I will see how a scan turns out this weekend. It is this margin which varies in width. The rest of the pane with the printed stamps is unchanged.
AQ