This is a Parker 51 Aerometric Double Set finished in Burgundy with Lustralloy caps. The set was made in the UK around 1955 and is a very nice example of this desirable model.
The pen is fitted with the reliable aerometric filling mechanism which has been fully serviced. It is fitted with a lovely smooth Broad side of Medium Oblique nib and both pen and pencil are in excellent condition with only light wear marks and scratches commensurate with use. There are no dings in either cap. The set is presented in its original box which is a bit battered but has served its purpose.