Bailey BM II includes nine lamps (Q 838–Q 846) in his type A group v, which corresponds to Loeschcke type I C. In fact, only two (Q 841 and Q 842) have Loeschcke nozzle form C. The others have the intermediate nozzle form B/C defined by Goethert-Polaschek, whose Trier lamp catalogue was published five years after BM II. Moreover, the nine lamps in question all have a handle, which none of the Getty lamps of type I C has. The BM lamps also have Loeschcke shoulder forms IV a and IV b, while the Getty lamps have shoulder forms III a and III a var., with one exception that has form VII b. For these various reasons Bailey’s type A group v will not be used here.
As already said, in Loeschcke nozzle form C the distance between the volute-spines is less than the distance between the angles of the nozzle tip (see fig. 1). The size of the nozzle is greater than that of Loeschcke type I A and often, but not always, greater than the nozzle size of type I B. The dominant shoulder form among the Getty lamps is form III a (11 ex.) or III a var. (2 ex.). It is accompanied by a flat base marked off by one groove. For the Getty lamps with these characteristics the suggested date is Claudian to Flavian. Cat. 142, signed COPPI.RES, active A.D. 80–160, was made in the Early Flavian phase of production of this workshop. Two other potter’s marks are recorded: a planta pedis on cat. 141 and incuse letters P.A. on cat. 134. Only cat. 118 has Loeschcke shoulder form VII b and a base-ring. No type I C lamp has a handle. Out of a total of fourteen discus decors, five are related to the amphitheater and circus, four to mythology, two to animals, two to everyday life, and one is a symplegma.