Distribution Department, Low Service Pipe Lines, 30-inch check valve and 30-inch x 10-inch Venturi meter in Perkins Street, at Boston boundary line, Somerville, Mass., Dec. 19, 1916

Distribution Department, Low Service Pipe Lines, 30-inch check valve and 30-inch x 10-inch Venturi meter in Perkins Street, at Boston boundary line, Somerville, Mass., Dec. 19, 1916

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