It is what it is - a big heavy lump of cast iron with a couple of holes and the top machined flat. I don't do blacksmithing, but I use it to cold form metal - lay it on there and hit it with a hammer.
Please take it straight down the shed - if you leave it in the hallway a cat might run under your feet causing you to slip/kick it and break a bone in your foot. Ask me how I know.