Riverbank Publications No. 21 Methods for the Reconstruction of Primary Alphabets

by William F. Friedman

$275 · Offered by Kuenzig Books

First edition

Riverbank, Geneva Ill. Riverbank Laboratories Department of Ciphers 1918. First Edition. 14, 2-blank pages. 28.5 cm. Provided in the originally issued Riverbank Laboratories button and string flapped manila envelope with limitation number on outside sunned on one edge, crease . Individually numbered limitation of 200 copies so stated on copyright page . Stiff tan publisher's wraps with cover titles duplicating title page.

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