Take The Mysteries Into Your Own Hands
Bookmark credit: "City Lights 1984" (Gent Sturgeon, 1984), ad for City Lights.
Pin: Tom Siddell, purchased from Topatoco.
Sticker: Cherry Moon Factory.
Card: "The Twin Blasphemies" (Laurel Austin, 2005), from Call of Cthulhu CCG, card game by Eric M. Lang, published by Chaosium.