Looks like it's never been washed. One faint nailhead sized stain on left sleeve detected. And very faint bottle cap-sized discoloration to white stripe on front hem. See detail photographs and look at the very center of the frame.
Stored under plastic in smoke and Febreeze free home.
This was the jersey used in 75th NHL anniversary year. This is the actual round neck version. You see some versions with an incorrect v-neck.