These are Alps Otome apples:
“Originated in Nagano. It was found as a chance seedling of Fuji and introduced by
K. Hatagoshi in 1964. It is a crab apple with sweet flavor and shows scab resistance. It matures
in the middle of October.”
It is an excellent tasting apple, and despite its modern heritage, it is more reminiscent of the British heirlooms than modern day apples, with a softer texture and a nice complex combination of sweet and sour flavors.
I would love to find scionwood of this in the US but so far have not run across any.