Gasteria Armstrongii A
(Update: The last two photographs were taken on May 16, 2016.)
Extremely slow-growing! The large plant is the parent and was open pollinated so could by a hybrid. Parents of this variety have long, sturdy roots, but the offsets still don't have any which is okay as long as you keep the soil damp.
The very young (as of the end of 2015) tiny (about an inch long) offset in photograph 5 is available. It has hardly grown in the 2-3 months since I removed it from the parent.
The shopping cart does not allow me set a by-car delivery fee (possibly free) by location and order size. So, the fee will be collected in cash at the time of pickup (please hide it for me in a shady spot where you want the plants to be delivered).