TY  - BOOK
AU  - Doublet,A.R.
TI  - Pacific Steam Navigation Company
CY  - London, England
PB  - The Royal Philatelic Society
KW  - Pacific Steam Navigation Company
KW  - Shipping Companies and Packet Service
KW  - Maritime Mail
KW  - Postal History
KW  - 1840-1853
KW  - 19th Century
KW  - Covers
KW  - Postal Markings
KW  - Pre-adhesive Covers
KW  - Postal Rates
KW  - Chile
KW  - South America
KW  - Great Britain
KW  - Transoceanic Mail Transportation of Mail
KW  - Steamship Issues
ER  -