Matt,
It is from my personal collection; sourced by either the late Bob Stull out of his collection(I dunno where that ended up), or his contact/friend at the UCB that obtained it for him, or me directly, it being I strongly suspect, a Lachlan McLean image. My file number for it dates to 4/07.
You could try the UCB perhaps; I've lost that paticular contact.
Thanks also to providing the interesting facts on the Bobtail Tramway; I plain forgot about George Stroehle & Sons aka Boiler and Sheet Iron Works, for some reason.
UpSideDownC
in New Zealand