WWII "Blood Chit" and Survival Map

Here is a nice collectible piece. This is a World War II Seventeen Language Silk Blood Chit (Jacket Liner), and AAF Cloth Double Sided Survival Map - No. 32 French-Indo-China on the front, and No. 33 Central China on the Back. What makes this set unique is the letter from the Pilot, who was shot down in Burma during the war, with a nice story and his Signature.