Just saw this; It is called S. trifasciata 'Singer's Silver' (aka 'Hahnii Striata' no longer used).
Not quite a Hahnii but growing about a foot tall.
Said to come from Hahnii Silver Frost;
It grieves me that I lost that beautiful plant. Trying to get another one.
Now, my question; Is the pups coming from my old Asahi just might produce such a plant? So far the pups are looking like it!