"To Jupiter, the best and greatest, and the deities of Augustus, the first cohort of the Tungrians (a military one) commanded by Quintus Verius Superstis, præfect."
At Carrawburgh there was found a stone of the date 237 A.D., with the words "COH · I · BATAVORUM" very clearly inscribed. At Chesterholm more than one altar has been found inscribed "COH · IIII · GALLORVM."
At Walwick Chesters was found an important slab declaring that "the [soldiers] of the second ala (or cavalry regiment) of Asturians restored [this temple which had fallen down] through age."
At Great Chesters a roofing slab was found stamped "COH · I · ASTVR," besides other inscriptions.
So also at Carvoran and Birdoswald there is abundant confirmation of the Notitia statement.
The largest fort is Amboglanna, 5½ acres; the smallest is at Drumburgh, ¾ of an acre, an exceptionally small site.