These tiles were made in the 1970’s and 80’s in Kwa Zululand Natal by Valmai Olsen Edwards. They were part of a series. They are press moulded and designed to hang up. In their hey day they were sold in many prominent outlets.
I have seen them polished a deep brown which looks really lovely. I think these tiles are from the african mythology series.
The information with regard to these ceramic tiles is obtained from the definitive reference book by Wendy Gers called Scorched Earth covering 100 years of South African Pottery.