All you need to enjoy this book is your finger, an inkpad and your imagination.
From the washingtonpost.com
At each control, originally, the control staff or the competitor rubber stamped the control card using a rubber stamp and inkpad kept at that control.
From the en.wikipedia.org
The Emlen funnel for instance makes use of a cage with an inkpad at the centre and a conical floor where the ink marks can be counted to identify the direction in which the bird attempts to fly.