第2部 > 望遠鏡・顕微鏡 > 望遠鏡

ヤーキス天文台の望遠鏡

上図：The Dream City in Books of the fairs [microform] Research Publications (1989-1990) reel. 105, no. 6.
中図：A portfolio of photographic views of the World in Books of the fairs [microform] Research Publications (1989-1990) reel. 117, no. 4.
下図：Bancroft, H. H.: The book of the fair n.7 (1893)

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