...or how I learned to stop worrying and start a Blog
1957 ... bank vault - 37 kiloton 'Priscilla Shot'
... "Response of Protective Vaults to Blast Loading". The bank vault itself survived virtually unscathed. The still functioning 14 ton steel door was removed after the test. I have been trying to determine what the distance from ground zero was. Damn close is my estimate.
a reader provided info that the distance was 1,150 ft from ground zero (37 kiloton weapon suspended from balloon at 800 feet)