Zodiac Discussion Forum

Of course, you of all people would be able to point out the astronomical odds against stumbling across the Zodiac’s personal copy of Codebreakers cont…

Where did the image come from? Is the book in your possession?

I’m assuming the stamp in the book is part of the design as opposed to hiding confidential information. That would be ironic. And for a would-be encip…

Yes, it’s a stamp or roller to hide confidential information Good find! Here’s an article comparing various models: