파일:Main switchboard, c. 1888 (Forty Years of Electrical Progress).jpg

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파일 설명

설명

Main switchboard, c. 1888 (Forty Years of Electrical Progress).jpg

날짜

1930년

출처

Scan from [[http://philosopedia.org/index.php/Adam_Gowans_Whyte | Whyte, Adam Gowans (d. 1950)]] (1930년) Forty Years of Electrical Progress, 런던: Ernest Benn

저자

Andy Dingley (scanner)

저작권
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This UK artistic or literary work, of which the author is unknown and cannot be ascertained by reasonable enquiry, is in the public domain because it is one of the following:

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