A Big Brown Stoneware Jug / Interesting Shape / Unknown Maker and Age

This is a little out there for me. I saw it sitting in the shopping cart at the Goodwill waiting to be put out. The price was a little out there too.. 6 bucks!! So I'm hoping it's something good. Super heavy interesting design with the ledge bottom. Lots of imperfections and glaze misses especially the handle. I thought it had chips but the glaze is very spotty though the loop. No mark to speak of. The bottom is a marble swirl. There is something that looks like two vertical lines next to each other but it's really hard to see and it maybe just an anomaly. So what do you think everyone? -Mike-