
This is the original Haworthia mutica "White Widow" on display in the Karoo National Botanical Garden at Worcester. A photograph of the original plant also appears in the book "'Guide to Garden Succulents'. Gideon F. Smith & Ben-Erik van Wyk. Briza Publications, Pretoria , 2008."
The plant going on auction from Friday 290110 displayed above this post has already very similar features as this old plant.