Pottery shard?

[Goot]

Has anyone ever seen a pottery shard like this?
The pot was apparently made by laying strips of clay on top of one another. The strips look to be made of mud and very fine limestone powder.
Thanks in advance.

 

[quito]

Never seen anything like it.

are you sure it’s pottery?

 

[MAMucker]

Yes it’s a NA clay pot making method called COILING.

https://native-american-indian-fact...cts/Native-American-Indian-Pottery-Facts.html