Tezber was an outpost on the planet Acamar III. This outpost, in the Vackrinos District and near to Felker City, was home to a weapons supply depot.
In 2313, Tezber was the target of a Gatherer raid led by Penthor-Mul. Before the raid could commence, the Acamarian Internal Security apprehended Mul in Felker City.
In 2366, this outpost was mentioned in the police records of Mul, which were accessible to the crew of the USS Enterprise-D via the Acamarian planetary database. (TNG: "The Vengeance Factor", okudagram)
In the original version of the text, the weapons supply depot was located in the Yatsura District.