Whats kind of tea pot is this??(clay)

[hop_goblin]

Grubby, earthenwares are available almost throughout the world and it's too early to determine whether it is yixing clay without handling the real piece. However it's way too difficult to judge from pictures especially the clay has this texture and color.
I've been in south east asia and south asia and I've met similar pots. What I found is rather larger than 2L pot made of the local clay. The local people call it 'stiff clay'.
It has an insulation effect which keeps the water cool during summer. As an earthenware, the local people also claim that the water stored in the pot 'smells better' than tap water because it absorbes some chemicals in water.
Please bear in mind that clean and good tap water isn't distributed evenly in those area, so people use these earthenwares to store water.

I'm no expert in this field, but if the pot is very large and heavy after filled with water, the normal way to pour the water would be by tipping it instead of lifting it, so you should look for signs at the bottom of the pot where the point of stress causes some wear signs. More signs = more use --> could be (but not must be) old

That is what I thought it was betta a "water Kettle". How peculiar you should mention the smell of water and clay. In Mexcio, people make water kettles to store water in as well for the same reason.