DOC69/8295 - Alberti's encryption device

From J. Gadol (1969). Leon Battista Alberti: Universal Man of the Early Renaissance. Fig. 51 in:

LEFAIVRE, Liane (1997). Leon Battista Alberti's Hypnerotomachia Poliphili. Re-Cognizing the architectural body in the early Italian Renaissance. Massachusetts Institute of Technology, Cambridge, Massachusetts. ISBN 0-262-12204-9

Done