Looking for Winesap in the NW

[nwchip]

I grew up near Pennsylvania and grew up eating my favorite apple, when in season, the glorious Winesap. Now I am an adult in Washington (Seattle) and would love to bite into one again- but have not seen any in my area. Does anyone know if Winesaps grow in WA, or where one can go to purchase them? Thank you for your reply.