Word: 2million
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Dates: during 1982-1982
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...offer is accepted, the firm will have to install a computer-controlled file locator system and conveyor belts throughout the tunnels in order to turn them into a vault. Cost: an estimated $2million. Despite those expenses, subterranean storage is expected to cost only $1 per sq. ft., compared with up to $50 per sq. ft. for aboveground space...