Detecting on the rivers, we run across many old/antique fishing lures, along with old fishing weights. Real old fishing weights. Some look like just rolled pieces of lead. Here's a website to help you identify the lures you find. http://www.antiquefishinglures.com/ Here's the page on Casting Weights. http://www.antiquefishinglures.com/weights.htm I haven't found a decent site for old fishing weights yet, so if you know of one, post it here. Thanks!