This is 450.1 Beau Black Lab: [link]
There was also a yellow (Dijon 450.2) and a chocolate (Mocha 450.3) version of this plush with the chocolate one having the shortest production run: [link]
Beau has been in Douglas Cuddle Toy's plush product line for quite some time. You have one of the older ones though judging from the style of nose. The older Douglas dogs had folded, slit-like nostrils while the newer ones have rounded, scrunched nostrils (like the ones on your Tyson wolf pup).