A Call of Cthulhu campaign I've been putting together over the last few weeks has reached the point where clues and documents are being produced as player handouts. Below are a couple of photographs of the core clues in a Victorian botanists field notebook. These will be bulked out with line and colour drawings scanned from old publications and scavenged off the web to add some authenticity.
I may yet age the edges of the paper further by leaving the notebook outside in a suitably damp shed. This should impart a certain must and mildew to the publication.