TY  - BOOK
AU  - Bloomer,John Godfrey
TI  - Pacific cryptography,: for the use of operators in mining stocks, mining superintendents, bankers and brokers,
AV  - HE7677.M6 B62
PY  - 1874///
CY  - San Francisco
PB  - J.G. Bloomer
KW  - Cipher and telegraph codes
KW  - Mining
ER  -