Original U.S. WWII Army Air Forces Restricted Information File Lot - Radio Operators, Bombardiers, & Pilots - Extremely Rare Vietnam Because only a few forward

Because only a few forward airfields were available

In particular

with the caption OBSERVE BLACKOUT DISCIPLINE

This process allowed the wearer to be independent of the surrounding atmosphere for the effective time limit of the oxygen supply

when 4 members of the crew were killed

Original U.S. WWII Army Air Forces Restricted Information File Lot - Radio Operators, Bombardiers, & Pilots - Extremely Rare Vietnam Because only a few forwardOriginal Items. Only One Lot of Three Available. This is a fantastic lot of great Restricted Information File books, which were made up and revised multiple times during the war. The books give an overview of the work, responsibilities, and intricacies of each of the professions. The three included are the Bombardiers Information File (BIF), the Pilots Information File, and the Radio Operators Information File (ROIF). These were designed in comic book