I have not attemped to clean it any. As far as I know only the pot is original. I believe the ring and handle was made for it at a later date. The stand the ring sits on is a wheel. The markings on it is either HH08 or HN08.
I cannot tell which one it is nor can I find any information on it. The pot is very large.
The measurements of the pot is 26 1/4 inches wide x 16 inches deep. The measurements on the ring is 36 inches x 36 inches. The wheel it sits on is 6 inches deep x 17 1/5 inches wide. The item "Antique Vintage Cast Iron Cauldron Wash Pot Vintage With Handles & Ring Stand" is in sale since Saturday, July 01, 2017. This item is in the category "Collectibles\Kitchen & Home\Kitchenware\Cookware\Cast Iron".
The seller is "awwwshuckyducky" and is located in Dexter, Missouri. This item can't be shipped, the buyer must pick up the item.