When I built my property two years ago, I used some of the wooden slabs from an older update of Minecraft. They're just named "Wooden Slab", and they have the same block value as stone slabs, meaning they need to be mined with a pickaxe, and making them fireproof. These items can't be obtained any more, but were still kept in the game. My main question is: Are these able to be auctioned?