Where are these from?

I got these beautiful pieces years ago from Henry Wangeman of Amate Books.  They always had the very best stuff and I have two houses filled with wonderful things I got from Henry and Rosa. 

Of course, I never wrote down where thing were from, so does anyone recognize these pieces? 

The designs do not look Oaxacan, but there are so many different styles, they well may be.  And these deep chocolate colored glazed are big and heavy. 

They may look simple, but they are masterpieces to me and Henry said they were special.  Any ideas? One of my favorite early moments in Oaxaca came on my first visit.  I bought a nice black pottery piece from San Bartolo Coyotepec and while standing in line at customs with friends, I blurted out, "Wow, I hope my pot made it through."  Needless to say, everyone around me gasped and then smacked me... in the nicest ways.  "Chris, you are an idiot."  Just to be clear, the pottery arrived undamaged.