How do I find 1927 South African birth certificate for deceased mother?

Dear Norma Ross,

Thank you for posting your request on History Hub!

We suggest that you contact the National Archives and Records Service of South Africa for assistance with your search. The FamilySearch research wikis for South Africa Online Genealogy Records, South Africa Genealogy, South Africa, Cape Province, Civil Records, 1840-1972, and South Africa Vital Records may also be useful.

We hope this is helpful. Best of luck with your family research!