And yes, a few latter-era signs were found.
Firstly, Olsen Place in Broadmeadows. These days it's an almost entirely Middle Eastern shopping strip, but once it looked like this (thanks to this pic from the State Library of Victoria):
Today, a few traces stubbornly cling on:
One near the Broady station:
...and back in Reservoir:
And then there was yesterday - a great former trailer manufacturer in Lalor:
Plus earlier, a visit to the bike shop. The window had this poster - ghost signs hitting the mainstream: