抄録
This paper examined 3 documents about the foundation waterworks laying kept in Tsubame city and elucidated the following points.
1) “Zittsi-sekkeisyo” (the enforcement specifications) is the document of the original design produced in about June, 1937.
2) “Henko-sekkeisyo” (the change specifications) is the document about changing in 1938.
3) “Kanryo-nintei-tyosasyo” (the completion authorization report of investigation) is the working papers of the construction schedule and the financing made to the completion of July, 1941, and finally wrote it until the end of 1941 and was inherited.
