Signed Mid 18th century burl bowl perhaps earlier. This is a big one just under 20" wide ,13 across weiging 7 lbs stamped on the bottom with a name and differen initials? I think the stamp is the 2nd owner this has been around a long time. There are a couple srinkage crackes one small one you can see light through its stable for sure not noticable unless held to light. It also appears to have a raised edge on one side also well worn through the years. I have no idea how to tell what species of wood it was made from.