This is a 1500 lb. keel for my old boat, Passage. When it came time to pour the mold I'd made, I was most grateful to find a place still in business...back in the '70s...with big vats of lead. They pumped the lead into the mold while I waited, literally. Cost me a dime a pound over market.
This is why I still have 400 lbs of lead pigs sitting in my garage some thirty plus years later.