Thanks to everyone.
That would make more sense - I can't find anything on a 'B.CAM'.
Irene's father was General Manager of a huge Company in Perth, so perhaps she was being prepared to work in the Business.
If so, it didn't work out that way. The only reference I have to her qualifications is a newspaper item reporting her marriage. They are not mentioned again, nor is any occupation.
Her husband was a GP, however, so perhaps she (unpaid) managed his practice for him.
Since she was born and raised in Perth, perhaps St. Andrew's or Edinburgh Universities would be a good place for me to check.
I have attached the relevant clipping.