This small fragment preserves meager remains of a previously unidentified commentary on Aa II/4. This originally two- or three-column tablet belong to the British Museum’s “Babylon Collection”, and shares its consignment number (80-11-12) with two other Aa commentaries: BM 38137 (CCP 6.1.16.A.b, on Aa III/1) and BM 38519 (CCP 6.1.u4, on Aa VI). The section preserved is devoted to explaining the Akkadian readings of the sign eš when read as bà. The most interesting feature of the fragment is that it lists the rare word ūṭu, “half cubit” (under the archaizing writing ú-ṭú-um) as one of these readings.