Great Britain 1 Pound Banknote VF

Great Britain 1 Pound Banknote VF, not dated but known to have been issued in the period 1948 through 1949 and shows Britannia seated within a frame top left corner of the front. Left with the image of Saint George on his horse slaying the dragon and a wide structure on top

Watermark showing the head of Britannia in the white circle bottom center.