Secret Cipher Ashtray. Circa 1930-1940,
Secret Cipher Ashtray. Circa 1930-1940, Unknown Issuer. Disguised in full view as an ashtray, this device could be used to encipher and decipher messages.
Secret Cipher Ashtray. Circa 1930-1940, Unknown Issuer. Disguised in full view as an ashtray, this device could be used to encipher and decipher messages.