Küller, Paul to Henry Faulds regarding Harvey Clifton, publications, "fingerseals" as a type of signature (Küller's invention), and the enclosed materials. Enclosed: sample of "fingerseals" article--"Das Fingersiegel. Ein Neues Fingerabdruck-Verfahren zur Sicherung von Werturkunden" (in German), and a typewritten translation of the article. Personal letterhead.; 15 leaves; DF 698