Historical information
Used from South Melbourne depot in the time recording Bundy clocks that were located around the MMTB system. The key number related to the driver's shift number.
The reference has details of the manufacturing of these clocks and the companies involved.
.2 - as above, but for Kew Depot, No. 116. Added 28/9/2019
Physical description
.1 - Key - or Bundy Clock Key - brass, rounded head with drilled hole stamped "Tramways" on one side and "18" on the other side with a steel section that controlled the action of the recording clock and provided the means of stamping the number "18A" onto a paper tape.