African Sigillata 1 Form 11 Variant 1

Identification: 
Hayes 27/Bonifay Type 13 dish.
Description: 

Dish with rounded rim, steep, strongly convex upper wall, angle to short, straight lower wall, and broad ring foot and flat, often depressed floor.  Groove on interior wall immediately below rim; two sets of grooves on floor.   Glossy to matte slip on all surfaces. 

Bibliography: 
Hayes 1972, 49-51; Atlante I, 31-32; Lund 1995, 484; Bonifay 2004, 158, 159; Serrano Ramos 2005, 234.