TEXT: KEY
  One way secret door
  Double doors
  Single door open
  Double doors open
  Column
  WATCH TOWER - MAP 2
  LEVEL 2
  LEVEL 1
  1
  2
  3
  4
  5
  6B
  6A
  7
  6D
  6C
  7B
  8
  10
  11
  13
  12
  14
  15
  WATCH TOWER KEEP
  In its heyday!
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/1st Edition (ODD, D&D Basic, AD&D)/1st Edition/3rd Party/Dragonsfoot/Modules/DF12a.pdf