Ržiha, Franz, 1881 (1993/2010). Études sur les marques des tailleurs de pierre, Éditions Véga/La Nef de Salomon, 176 pp, ISBN 978-2858296712 (paperback)
Franz Ržiha published extensively on technical issues including the construction of tunnels, bridges, railways, and mining industry. But his interests went far beyond his profession to encompass history and the arts. His study of the marks of stonemasons (Studien über Steinmetz-Zeichen) first published in Vienna, Austria in 1881 explores secret geometry, rituals and symbolism associated with lapidary signs. This book has been unavailable for quite some time, underscoring the importance of this new French edition.