When a bill arrives, be it taxes or the tandarts -[that’s dentist in Dutch-for the alliteration] on the left-hand-side in the middle of the page is a <. The reason for the < mark is indeed to point to the middle of the page as it aligns smartly with the > in the paper punch for making two holes. The entire populous files their ‘bookwork’ in the same manner, in the folders as shown.
