Form D X 6 comprises lamps characterized by a decor of rows of shoulder globules. Cats. 430–32 have shoulder forms absent in Loeschcke’s classification; cats. 394–95 have Loeschcke shoulder form VIII b; all have nozzle form Bus. 10b. The nozzle underside of cat. 394 is decorated with a row of small tongues between two twisted cords, that of cat. 395 with a striated band between two curved lines. Cats. 430 and 432 have a plain discus, cat. 431 a deer, and cats. 394–95 Mars.
One lamp has a base marked off by one groove, the four others have a base-ring. Lamps of form D X 6 have rounded or heart-shape nozzles (Bus. 4a or Bus. 10b). Those with nozzle form Bus. 4a are assigned to the second half of the second century, as confirmed by an example found in a tomb in Tipasa necropolis de la Porte de Césarée, which ceased to be used around A.D. 180. On its discus (as an obol to Charon) lay a sestertius of Marcus Aurelius of A.D. 140–43. Those with nozzle form Bus. 10b were produced during the second half of the third century. The excavations by University of Michigan at Carthage have yielded about fifteen frr. (identical to Deneauve 1969, no. 999); they derived from layer XIV, dated to the end of the fourth century A.D. Also at Carthage, a ceramic deposit dated approximately to the mid-fifth century A.D. has yielded a few more (Neuru 1980, no. 198, pl. 2, L 1; see also Rossiter 1988, group 4, pl. 2).
Additional objects of this type: cats. 430–32.