Roman inscription from Cambridge

The item is a letter on a folded sheet of paper, from J P Jones of Pembroke College, Cambridge, to the Society of Antiquaries. The letter descibes the finding, by the Rev H Biden in 1812, of two inscribed stones quite close to each other on the road to Girton. One was thought to be erected by the fifth legion in honour of Constantius, eldest son of Constantine the Great. The other fragment (not…