This double lobed bowl is by Margaret & Luther Gutierrez.  Margaret would make the pottery and Luther, her brother, would paint them.  This jar is a smaller version of their larger canteen/double lobed jar for which they were famous.  This piece has ants or insets painted encircling the piece.   All the various colors are derived from natural clay slips.  It is in very good condition with no chips, cracks, restoration or repair.  It is signed on the bottom, “Margaret/Luther”.  It is from the collection of Richard Spivey, known for his books on Maria Martinez.  The tag on the bottom is his inventory numbering system.