It has reduced its nuclear-weapons stockpile by 75% since the end of the Cold War and 90% since the height of the Cold War.

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Inside, there is about 3, 000 square feet, with a 28-foot-wide octagonal double-height living room with a library at one end and doors opening out to a terrace on the other.

WSJ: Selling Tudor City Treasure

One rifle, stood on its end, could be exchanged for a stack of beaver pelts the same height.

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