Winter 2023 Military & Collectibles Auction
Lot 263:
Description
Don Mario’s Electro Thermostatic Controlled Air Raid Warning System. Inventor Don Mario created and Patent Pended this Home Front item in response to the invasion of Pearl Harbor two days after the attack. This Air Raid System was to be shunted across the lines of traffic signal lights now in operation. This group included the actual designs with notes created by Mario, finished designs to distribute, letters to First Lady Eleanor Roosevelt and John Berger. This is an incredible one of a kind item. Nice condition for it age.
Condition: See description for condition report.
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