浜町公園苑路広場新設其一工事竣功図 幅員十二尺及十五尺苑路横断面図 As-built Drawing of the New Construction (No. 1) of Park Paths and Squares in Hamachō Park, Horizontal Section of Park Paths with the Width of approx. 3.6 Meters and of approx. 4.5 Meters