CONFIDENTIAL in 1966   "Yankee Station"

This chart/map belonged to LTJG John Marlin (NFO), this is a real navigational chart from appx. 1966.  The red lines and alpha tags are patrol zones. 

The red dots are SAM (Surface to Air missle sites) and the black dots are FIRECAN's, radar controlled anti-aircraft guns

There were some pencil handwritten addition tables written on the back of this map,  ohhh to have a handheld calculator back in those days....laugh.

GULF OF TONKIN, HANOI, VINH, THANH HOA,  NAM DINH,  HUNG VEN, NINH GIANG,  HA TINH, HUE, QUANG TRI, MARBLE Mountain,  DA NANG,  just a few of the places  I spotted on the big map. 

Smitty.....