Telephony Document Repository - The TCI Library
Telephone Collectors International - over 25 Years of Service to the Telephone Collector and Historian
Categories
AT&T Specifications (pre-BSP) (Files: 29)
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4-digit all numeric codes, used before about 1930.
BSP Categories by early Letter Code (e.g. C-series) (Files: 568)
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Alphanumeric codes, used from about 1930 until the early 1960s.
BSP Categories by later Division Number (e.g. 512-) (Files: 7263)
9-digit all numeric codes, used beginning in the early 1960s.
BSP Index Documents (Files: 13)
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Find BSP numbers in these stand-alone index documents, then search for the BSP by number..
HINTS: Find more BSP lists in TOC descriptions in the HANDBOOKS category.
Search for -000-000 or .000 to find the more detailed section/division indexes.
CMP - Crafts Manual Practices (Files: 26)
Search for "Crafts Manual TOC" (table of contents) for document titles.
DFMP - Dial Facilities Management Practices (Files: 38)
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Merged into Plant Series BSPs in 1977
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