Hide a message in plain sight with your favorite friends and find a message in plain sight with your favorite books. This edition presents a bookmark that is based on the invention and use of the Cardan Grille as a tool for concealing and uncovering hidden messages.

Edition of 130

Each edition contains 2 Special Special Edition Cardan Grille bookmarks, 2 lined info cards, 2 black envelopes, 2 sets of address labels, 2 colored paper clips, 1 cello bag.

Bookmark: 2.5 x 7 in.

Info card: 5 x 7 in.

Envelope: 5.25 x 7.25 in.