Electrolysis, Northern High Service Pipe Lines, Section 27, Washington Street, 12-inch pipe after removal and cleaning, showing electrolytic pittings, Lynn, Mass., Dec. 5, 1903

Electrolysis, Northern High Service Pipe Lines, Section 27, Washington Street, 12-inch pipe after removal and cleaning, showing electrolytic pittings, Lynn, Mass., Dec. 5, 1903

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