Tr. mil.? 89 (see MRR 2.35). This is Cichorius' reading (RS 154f.); but Bang read the fragments of the letters as M. FAB[I] M. F. [SE]R (CIL 6.37045-ILS 8888). The reading remains uncertain. (RS, CP) See now Criniti, L'Epigrafe di Asculum 19 and note 24, 121-123, who reads M. [M]aia[ni(us] M. [F., Se]r(gia Tribu).
(Broughton MRR III)
Cichorius identifies him as a Tribune of the Soldiers based on the list of members of the staff of Pompeius Strabo at Asculum (ILS 8888; RS 144-155). (Broughton MRR II)