DREYFUSS, Henry. Symbol Sourcebook: An Authoritative Guide to International Graphic Symbols.

(New York, NY): McGraw-Hill Book Company, 1972.  First edition.  Quarto.  292 pages.  Foreword by R. Buckminster Fuller.   An important dictionary of symbols issued to promote an international standardization.  The volume includes a section on hobo signs and an interesting piece on colours, providing the meaning of each of the colours in various worldwide applications and cultures.  A very good copy in good dust jacket.  Jacket ruffled, worn at torn at edges, with some loss on rear panel.