At an estate sale yesterday, I found 4 of these bars that I would guess are soft lead. The person that owned these was very much into electrical work, especially lighting, as they had a ton of light bulbs and other electrical stuff for sale. However, these 4 bars where just laying on the ground against a wall behind a pile of just miscellaneous junk. They all weigh 3.25 to 3.50-lb, and are 4" in length on their top side, and 1.5" in height. As you can see some have holes drilled into them which makes me think these where used as weights at the base of something to keep that object standing up. The soft lead ingots that I make out of SOWW, have a darker color like these do, plus the ingots I make sink in on the top like the ones here also do. So thats further evidence that I think these are soft lead. Most likely someone just made these random bars to use for whatever they needed them for, but I was hoping you guys might recognize bars of this weight and dimensions as a standard size for using in some application. Unfortunately I dont have the equipment to test hardness or alloy. I took one without holes in it, and I calculated the pounds per cubic inch of that ingot to be right at about 0.41, which is what lead is so they definately appear to be lead. I'm just not sure on how pure they are.