From Bobby Bernard's auction (12/06/2008 - Bloomsbury) - lot 533.
Interesting small booklet about Lyle. It concentrates more on the magic, describing some of the illusion and a quite detalied cut rope routine (Conradi's - the best one). Some ideas (hats production) are really good and the principles may be utilized also today.
This is the second, "augmented" edition, in A5 format.