Sailing in Antarctic Waters
Fine large format map of the Antarctic region, first published by the US Hydrographic Office in 1943.
The present example is the second edition, updated to 1947.
The first edition of the map was issued in pocket of: Sailing directions for Antarctica. 1st ed. Washington, D.C. : Hydrographic Office, 1943.
This map would be periodically updated over the course of the next 2 decades and with the accompanying text is the definitive guide map for the region.
While the text appears on the market, the map is frequently lacking.