Original Japanese WWII Black-Out Bulb in Original Box - Rare Technical Books Dear Lucile and all:At last

Dear Lucile and all:At last I can write a few notes to bring you up to date on the events over here

He was wounded in action severely and was sent back stateside on November 23rd

DE TULLE on the lock plate

It was crucial for servicemen to be able to recognize "friend or foe" in an instant

It was recognized in ancient times and improvements are still evolving today for the safety of patients

Original Japanese WWII Black-Out Bulb in Original Box - Rare Technical Books Dear Lucile and all:At lastOriginal Item. Only One Available. This is a fantastic heavily worn example of a Japanese WWII Blackout Bulb. Their purpose was to create a minimal light source to be used inside homes during air raid alert "blackouts", in which there was reason to believe there was danger of an air raid. When this happened, all normal bulbs had to be turned off, and these bulbs had to be used instead. The idea was to make it more difficult for enemy aircraft to