"The following message is a courtesy copy of an article
that has been posted to alt.collecting.pens-pencils as well.
When I peep to my rucksack that carry my Moleskine notebooks, I can see
only their upper edges that look too similar. Then I made this hack:
Write some short name of notebook to the upper edge of that notebook. Notebooks in that picture from up to down: Pocket Diary 2005, Sketch-book, Ruled Notebook. Fountain pen was not used for those texts.