_The Evening Post_, 4 March 1925:
CENTRE LINE POLES GOING
The #tramways department of the City Corporation is at present engaged, as one of its minor works, in the removal of the remaining centre line street #poles in Lambton quay, and will later remove these poles from Jervois quay as well. The overhead gear is to be hung from special cabling strung from poles on either side of the roadway.
https://paperspast.natlib.govt.nz/newspapers/EP19250304.2.106