US  Naval Air Combat Intelligence -- Hydrographic Office

 
 

WWII  Cloth Escape Charts

 

 

 

S-7B-8-1 Bonin Is. (Nov-Mar)

 
S 7B-9-4 Okinawa Shima & Parece Vela (Nov-Mar)
 

WWII Escape Maps and Blood Chits

 
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