In this case it was for the simple reason that they were too far away from the tram line (over 200m), and given there are already 110 photographs on the Northcote page, this didn't seem like a case for bending the rules even though there was several works here I enjoying discovering.
These photographs start with emerging from the first alley at the top of Little Eastment Street into the north end of Helen Street, near Arthurton Road. They finish looking across Arthurton Road itself. Referencing the main location Northcote map, these are right at the top on the left.
Here is a little rough and ready map of them.
Looking right, emerging from the alley.
Crossing Helen Street into the lane almost opposite
Backing out of the lane and looking left into Arthurton Road.