Title Gresham's phrase code / compiled and published by H.F. Gresham and P.L. Harrison

Published London : The Authors, 1925

Copies

Location	Call no.	Vol.	Availability
ADPML SPC	652.8 Gre/Gpc		LIB USE ONLY

Description 222 pages : illustrations ; 21 cm Subject Ciphers -- Handbooks, manuals, etc. Author Harrison, P. L.

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