Brockmann Come Si Diventa Prestigiatore
An Italian how-to manual of conjuring, V. Brockmann's Come si diventa prestigiatore, published in 1923 for amateurs learning stage and parlour tricks. The plates are small pen diagrams — paired paper cylinders, lettered rope loops and knots in sequence, a labelled triangle of taut and dotted lines — usable as instructional marks, sleight-of-hand step figures, or bare geometric linework set into text.
