Original sentence: With an emphasis on Sumerian forms, Deimel  lists 870 signs used in the Early Dynastic II period (LAK, 1922) and for the Early Dynastic IIIa  period (26th century, "ŠL", 1922)
Edited sentence: With an emphasis on Sumerian forms, Deimel (1922) lists 870 signs used in the Early Dynastic II period (28th century, "LAK") and for the Early Dynastic IIIa  period (26th century, "ŠL")