In the ROCOCO style by Photographer Rupert Kay, The Strand Arcade, Sydney, Australia - possibly between 1915 and 1920.
Obtained via a HOPPER family member who does not know the identity of the lady.
The mystery is that we can't identify the lady!
No mention of it is amongst the records of the Photographer Rupert Kay.
If ANYONE out there has a clue to who she might be, I would love to hear from you.