Alles van: J. Williams
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J. Williams Two-in-one code condenser
a standard system for rapidly coding two code messages in one word with perfect safety...; for use with general or private codes in English, French, German, Dutch, Spanish, Portuguese, Italian, or other language; indispensable to bankers... &c.
meerdere talen | 88 pagina's | Codes Limited, London | 1910
Gedrukt boek
J. Williams "Two-in-one" code condenser
a standard system for rapidly coding two code phrases in one word with perfect safety...; for use with general or private codes in English, French, German, Dutch, Spanish, Portuguese, Italian, or other language; indispensable to bankers... &c.
meerdere talen | 67 pagina's | Codes Limited, London | 1910
Gedrukt boek