"We realized in the mid-1970s that it was missing," says Effie Kapsalis, head of the Smithsonian Institution Archives.

史密森学会档案馆馆长埃菲·卡普萨利斯说：“我们在20世纪70年代中期的时候发现它不见了。”

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"It was luckily in good shape," says Kapsalis, "and we just have to do some minor things in order to be able to unfold it."

“幸运的是，它的状况良好，”卡普萨里斯说，“我们只需要做一些小事情就可以把它展开。”

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"It was luckily in good shape," says Kapsalis, "and we just have to do some minor things in order to be able to unfold it".

“幸运的是，它的状态很好，”卡普萨里斯说，“我们只需要做一些小事情就可以把它展开。“

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