Senders: Southern New England Telephone
- W. H. Babcock for Southern New England Telephone to SLC, 3 February 1888 · Hartford, Conn. · UCLC43920 CU-MARK
- W. H. Babcock for Southern New England Telephone to SLC, 22 January 1891 · Hartford, Conn. · UCLC45399 CU-MARK
- C. T. Pardee for Southern New England Telephone to SLC, 3 October 1908 · Danbury, Conn. · UCLC38100 CU-MARK
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