In the Book of the Month thread on the Derek Dingle book it is mentioned that there is a Dingle trick described on one of the Kaufman and Co. Trick Marks.
This got me wondering. How many of these Trick Marks are there, and is there a full list of them anywhere? Was a particular one always issued with the same book?
And what about the idea of reprinting them all together somewhere or as a series in Genii? No doubt the originals will be collectors' items before long.