Cohen, H. (1859-68). Description historique des monnaies frappées sous l'Empire romain communément appelées, médailles impériales (8 vols). Paris, M. Rollin.
A togate figure in a triumphal quadriga right holding a sceptre in left hand and with right hand outstretched, being crowned by a monkey who stands behind; all on a camel.
Reverse
XIX: Number within dotted border and wreath.
Reference
Buttrey, T. (1973). The spintriae as a historical source. Numismatic Chronicle 13: 52-63., https://zenon.dainst.org/Record/000459326
Mitchiner, M. (1984). Rome: Imperial portrait tesserae from the city of Rome and imperial tax tokens from the province of Egypt. Numismatic Chronicle 144: 95-114.