Putting this together with image 3730, I believe that this is the corner of Kennedy and Eyre St.

This would have been 1926-1927. C. T. Campbell's Chemist moved around the corner to Giles Street in the 1930s as can be seen in 5336 (https://mildenhall-origin.moadoph.gov.au/photo/4960).

The pharmacist shown is probably A T Campbell, a son of C T Campbell, who initially managed the Kingston shop for his father. A T Campbell was the first person enrolled as a pharmacist when the ACT set up its own system of registering pharmacists in 1931. By July 1931 the address AT gave, when registering, was Giles Street, so this photo was taken before then.