File:亜東印画輯 08 125 "採金の試錐作業（北岔子）".jpg

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Description	日本語: ●採金の試錐作業（北岔子）綱曳きのやうな格恰で四人の苦力圓盤附パイプを廻すと同時に盤上の四人は鐵管を地中に打込む。これはインパイヤードリルに依る試錐方法で、地下の基盤に達する迄一尺宛沈下する毎にポンプにて地中の砂を上げ砂金の有無を試驗する。最後に平均一立方碼の含有量を算出して價値が決定される。　（印畵の複製を嚴禁す）
Source	亜東印画輯第8冊
Author	亜東印画協会

	This photograph is in the public domain in Japan because its copyright has expired according to Article 23 of the 1899 Copyright Act of Japan (English translation) and Article 2 of Supplemental Provisions of Copyright Act of 1970. This is when the photograph meets one of the following conditions: It was published before 1 January 1957. It was photographed before 1 January 1947. It is also in the public domain in the United States because its copyright in Japan expired by 1970 and was not restored by the Uruguay Round Agreements Act.
Notes	To uploader: Please provide the source and publication date. If the photograph was also published in the United States within 30 days after publication in Japan, it might be copyrighted. If the copyright has not expired in the U.S, this file will be deleted. See Commons:Hirtle chart. This template should not be used for a faithful photographic reproduction of an artwork. Under Article 23 of the former Copyright Act, its protection will be consistent with the artwork. See also Commons:When to use the PD-Art tag. العربية ∙ čeština ∙ Deutsch ∙ English ∙ español ∙ français ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ Bahasa Melayu ∙ português ∙ русский ∙ sicilianu ∙ Tiếng Việt ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

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current	08:54, 8 May 2022		1,112 × 780 (164 KB)	Upload for Freedom (talk \| contribs)	上載《008_125.pdf》

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