The first signature in his book is that of President Collidge on August 6, 1924 and the book contains the signatures of other heads of government in the world although for the larger part the signatures are those of business men in the various contries. The book was signed by many American Diplomatic and Consular Officers.
— W. Roderick Dorsey, American Consul General, Letter to The Secretary of State, Genoa, Italy, June 5, 1933