Very nice DJ, a challenging collection I'm sure!
The only thing I thought might aid the novice viewer (ie, me) was the initial description of how to recognize a web note. You say in the text how to differentiate between sheet and web notes, but then the photos and red circles are just a bit confusing frankly. Why not scan in one sheet, and one web note, and give us a nice close-up image of just the areas with the differences, listing the captions "web note" and "sheet note" under each. I think it would be much more clear that way.
I bet I finish my one-of-each collections of African notes before you find all these web notes
Dave