Pacific cryptography, for the use of operators in mining stocks, mining superintendents, bankers and brokers,
Bloomer, John Godfrey,
Pacific cryptography, for the use of operators in mining stocks, mining superintendents, bankers and brokers, by J.G. Bloomer ... - 2d ed. - San Francisco, J.G. Bloomer, 1874. - 164. p. 19 cm.
ca 07003696
Cipher and telegraph codes--Mining.
HE7677.M6 / B62
Pacific cryptography, for the use of operators in mining stocks, mining superintendents, bankers and brokers, by J.G. Bloomer ... - 2d ed. - San Francisco, J.G. Bloomer, 1874. - 164. p. 19 cm.
ca 07003696
Cipher and telegraph codes--Mining.
HE7677.M6 / B62