This is a stunning jar beautiful and unique. And puzzling! The form is decidedly Santa Clara; the red/orange over tan coloration is decidedly San Juan. Either way this jar is gorgeous; pinched rim and narrow neck descending to a wide mid-body with a rainbow band in-between, rich (rich!) color, and deep black fire-clouds; elegant and perfect.
This jar will be included in my upcoming historic Tewa blackware show (which will give the sea of black pots just a splash of red).
Condition is original, unrestored.