Love graniteware?  How about this darker blue and white swirl handled mug drinking cup?  It has a black rim and white enamel interior.  Dates from the early 1900's. 

Decent condition but not perfect as noted from the photos.  Three areas of chips on the base and lower side. Somewhat stained on the white interior. 

Size:  2-3/8" tall x 3-1/4" diameter.