Ordered one online, didn't come with a label so mystery around identity still remains. Have emailed the propagator to see if they can shed more info.

Foliage size is similar to the drift series (eg Peach Drift), so presumably a similar cross of a wichuraiana derivative and a mini.

Didn't find thorns on it (including under the leaves) but possibly too early to say if they'll come with a more mature size.