What is this part please help :)

Hello,First off, I don't know the first thing about motorcycles so bear with me here. I picked this part up at a garage sale because it looked flippable. I've been told it's an "Inner Clutch Basket (aka Boss)". I do not know which type of bike it's for, what it's real value is, or where to sell it. Please let me know if you guys have any insight on what type of bike it's for, Harley? Yamaha? Ducati? Or how I can find out more information.I do know it was initially purchased for $285 and it's pretty wet like it has some sort of lubricant oil on it.Any info helps, thank you all!​What is this? Any info helps via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/dzu2h8/what_is_this_part_please_help/?utm_source=ifttt