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Engineers Working On The Construction Of The New London Central Exchange, 1901.
Engineers Working On The Construction Of The New London Central Exchange, 1901.
Engineers Working On The Construction Of The New London Central Exchange, 1901.
1964 Bell System telephone technicians
Engineers Working On The Construction Of The New London Central Exchange, 1901.
Engineers Working On The Construction Of The New London Central Exchange, 1901.
Engineers Working On The Construction Of The New London Central Exchange, 1901.