Good Find!!! Actually a GREAT find! Next Spring I would think about separating the variegated pup (the masoniana, not the four-legged one) and seeing if it will reproduce more variegated pups. 'Coppertone' is also one of my favorites. Hard to see in the photo but that does not look like 'coppertone' but rather S. kirkii pulchra (which still is BEAUTIFUL). I like your dog a lot too. Enjoy!

It's possible that there's more than one plant in that big pot. A lot of places put two or more to fill the pot up. That's a hard to pass deal.
Stush

Thank you, Woodnative, perhaps I should post a better photo of the other sans and see if it looks like Coppertone or not. And Stush, there are indeed two plants in that pot....I always repot new plants to see what the roots look like, and I found these were two separate plants that just seem to "fit around" each other.I thought about separating them, but decided they looked better in the same pot.