DS-8, DS-11, DS-12, DS-13 (1923 to 1928)	Back	Up	Next
When the 25Hz I-14 was renumbered the I-15, the corresponding switchboard models were affected. The DS-11 and DS-12 were split from the DS-6 and DS-7, and the DS-13 was split from the DS-9.	No pictures of these models yet.