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20" Knockdown Shelter, Mfg-Brunswick Corporation
click for auction site! Many states have other items... including aircraft and boats!
Dad & I built a 15ft underground, 20’x40’ area, years ago, w/ 3ft storage under floor, water, sewage & air systems etc.
http://www.atlassurvivalshelters.com/aboutus/nbc/shipping/
What’s their shipping policy?