vintage Mexican pottery teapot, Aztec style hand painted border terracotta red clay

Beautifully made vintage Mexican pottery tea pot in very good condition, no wear, no chips or cracks.

This has a very detailed hand painted border which looks like something typically described as Aztec, though I don't know the actual origin of this pot.

I've only found one other example of a design like this, in the internet archives of the Field Museum. This isn't marked or signed at all that I could see, but I think it's late 20th century. Vintage, not antique.