Electrolysis, Boston Elevated Railway, Central Power Station, 6-inch cast-iron service pipe from Albany Street to CPS of the Boston Elevated Railway, age 13 years (laid 1891), exposed to electrolysis 13 years; taken up December 1904, Boston, Mass., Dec. 1904

Electrolysis, Boston Elevated Railway, Central Power Station, 6-inch cast-iron service pipe from Albany Street to CPS of the Boston Elevated Railway, age 13 years (laid 1891), exposed to electrolysis 13 years; taken up December 1904, Boston, Mass., Dec. 1904

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