T-Square for Moleskine Notebooks

This is a simple T-square I created to assist in marking out columns and horizontal lines in my notebook of choice, the Moleskine Classic Large (5"x 8.25") Notebook.  The square is sized to allow the blade to span the width of a page while still being of a size to allow it to be stored in the notebook's back pocket.  The head of the T-Square is twice the thickness of the blade to provide a squared edge for referencing the edge of the notebook, however, the top of the T-square is entirely flat so it can be flipped over and used unreferenced as a simple simple straightedge.  The lower edge of the blade is indented in several locations to assist in marking out two, three or four equally-sized columns per page.  In the end, a small quick print that only uses 5g or 1.81m of filament that I hope others will find useful.