this letter was reproduced in Charles H. Hapgood FRGS, Maps of The Ancient Sea Kings, Chilton Books, Philadelphia and New York, 1966, p. 243
8 RECONNISSANCE TECHNICAL SQUADRON (SAC)
UNITED STATES AIRFORCE
Westover Airforce Base
6 July 1960
SUBJECT: Admiral Piri Reis World Map
To: Professor Charles H. Hapgood,
Keene, New Hampshire.
Dear Professor Hapgood,
Your request for evaluation of certain unusual features of the Piri Reis
World Map of 1513 by this organization has been received.
The claim that the lower part of the map portrays The Princess
Martha Coast of Queen Maud Land Antarctica, and the Palmer
Pensinsular, is reasonable. We find this is the most logical and in all
probability the correct interpretation of the map.
The geographical detail shown in the lower part of the map agrees
very remarkably with the results of the seismic profile made across the
top of the ice-cap by the Swedish-British Antarctic Expedition of 1949.
This indicates the coastline had been mapped before it was covered
by the ice-cap.
The ice-cap in this region is now about a mile thick.
We have no idea how the data on this map can be reconciled with the
supposed state of geographical knowledge in 1513.
HAROLD Z. OHLMEYER
Lt Colonel, USAF