That's an older Grizzly G1182HW, made in Taiwan in the same plant that the Jet, GI, Sunhill, Bridgewood, and others came from. Wood Magazine picked it #1 in a 6" jointer comparison over the Ridgid, Delta 37-190, Delta 37-195, Sunhill, Bridgewood, and Jet back in September 2000 IIRC. I bought mine in 2001 and it's been performing like new ever since. Original price was $297 plus $55 s/h. You got a great deal on a nice jointer that appears to be in really good shape. Enjoy!
FWIW, Loma Tools is still selling the former
Sunhill CT-150 6" jointer with 56" extended beds for $250 plus ~ $100 s/h...brand new old stock with warranty. For those looking at new 6" floor jointers, it's a great deal on a very well proven tool.