I have just purchased this block of steel as a drop from my local metal supplier and looking to use it as an anvil, it's 3x3 square stock and ~4 inches long weighing ~15 lbs. I would like to use this as a starter anvil but I was wondering if you all had any advice for mounting it and/or trying to augment it's rather meager weight. I know that people often will put a smaller sledgehammer head anvil in concrete and wasn't sure it would be a good idea to do that for this piece. Here is a picture of the block in question