Rick67, it's a cast iron Colonial period flat iron, as in ironing your clothes. They were relatively small, this one is about 5" long, I haven't measured it. They cast them then added a handle. On the earlier pieces the handles are never found. They would be placed near a fire to warm up, then when at the right temperature were put on cloth on whatever they used as an ironing board, probably just their regular table, and use it to press the clothes to get wrinkles out. It would not last long, and had to be reheated and done again and again until finished. People had to be careful not to overheat the piece or it would burn or scorch the clothing, but these guys were expert at it. This was was probably 1670-1800. After 1800 technology changed, and they became fancier. They became obsolete with the invention of electricity. I'm looking forward to seeing your post. My piece should be either soaked in "iron out" for a few days or buffed with a steel brush, then finished. I look for these, for the iron trade axes, which can get quite pricey and rose head hand made nails, among other things.