RAHS

I’ve just dug up a glass bottle in my front yard, Cambridge New Zealand. It has imprinted on the bottom. Glass bottle remains the property of David Gelatine Australia Sydney. My house was constructed in 1973.

Mosman I think , roughly the site of the Zoo with Sirius Cove foreground ? The island on the left is Garden Island , when it still was one .

I think it is more Neutral Bay, looking south-ish. For some reason it was a popular view ...

I’m guessing it’s taken from North Sydney somewhere near the top of Blue St and subsequently Holterman’s Tower would be built.

kinghitz Cremorne / Neutral Bay from up near Rangers Road. www.google.com.au/maps/@-33.834026,151.2258297,28a,35y,18...

[watching with interest]

I think this looks like Druitt St, Sydney from Day St. (not Harrington St) - The imposing edifice at far right (with the massive Bushells advert) is like the 1920s Bushells Building in Harrington St.
Comparison: See Street View below and Bushells building (121 Harrington St) in c1970. _
www.shfa.nsw.gov.au/heritage_image_popup.cfm?objectid=133...
The coupe is Vauxhall from about 1946-1949:

hmm It does make sense that the photo was taken near the wharves. But, this road looks wider than Harrington Street, and I spent ages with google maps and the Bushells Building and couldn't match up the older buildings still standing with the photo. Maybe that just says something about my skills. Another thought is whether it was taken somewhere up near Central Station - Harris Street maybe?

RAHS
As you said, Harrington St is a narrow street and the image couldn't match up the older adjacent buildings.
The far right building does bear some resemblance to the Bushells Building (and the the massive Bushells advert on the wall!) - and also some other buildings in Sydney.
I’ve searched some historical photos of Sydney and aerial photos of 1951 (below) and came up with nothing so far. The church steeple in the background, and the cupola in the near building and the shadows would be clues.

Stop Press: (Second Try!): I think the location is Druitt St from Day St former wharves area (see Sussex St intersection in foreground) .
The only remaining building is the cream colour 'look alike Bushells' Building (right centre). All other buildings are gone, and even the road leads to a curve into the Western Dist.. Also the afternoon shadows make sense.
(also see the 1951 aerial photos above).
Street View: www.google.com.au/maps/place/Druitt+St,+Sydney+NSW+2000/@...