In addition to some Italian picture lamps of the 1st century A.D., the main focus of K. Wilhelm's lamp collection is on 41 lamps of the middle and late imperial period produced in North Africa, as well as three singular plaster matrices for the manufacture of lamps with heart-shaped snout. The 32 red-tone, red engobed lamps from Central Tunisian potteries give an insight into the rich variety of snout and shoulder designs during the early phase of red-tone lamp production; they also show connections between the mirror decoration motifs and the appliquéd sigillata of the second half of the 3rd and 4th centuries. X-ray fluorescence analyses can be used to verify their production in two pottery centers.