In a P-38 crash (or ditching) I am researching, I came across the use of a map reference that is unknown to me. I know this particular P-38 came down near Jefman aerodrome (Japanese drome near Sorong, West Papua, Dutch New Guinea) on September 5th 1944. The pilot, Lt Charles W. Springer, was rescued from the ocean by an 2 Emergency Rescue Squadron Catalina.
The map reference used is 61 Olson 45
Any ideas what this reference could be?
This is a 1944 map of the area:
The map reference used is 61 Olson 45
Any ideas what this reference could be?
This is a 1944 map of the area: