Academic dress of the University of Nottingham
In general, the academic dress of the University of Nottingham dates from the award of its Royal Charter in 1948. Prior to this date, (the then) University College, Nottingham taught students for University of London examinations and "Nottingham graduates" were actually London graduates and wore the appropriate dress.
Source: Wikipedia — Academic dress of the University of Nottingham (CC BY-SA 4.0)