The Parker '51' Aerometric filling system was introduced in 1948. In England the two '51' versions were designated 'Classic' and 'Custom'. This pen is the high end Custom version with a 12Ct. rolled Gold cap.
The English Parker 51 was not date stamped at the time but sometimes a pen can be dated in view of slight changes to the design. In 1965 the filler sleeve was changed was changed to a one piece metal version and, in 1969. the Mk.II pen with a aquared off barrel end was introduced. This example is a Mk'II pen with an all meatal filler sleeve so it can be dated between 1965 and 1969. These changes didn't take place overnight and Parker were fastidious about using up old stock so a bit of leeway is possible.
The pen has been fully serviced and tested and is in good working condition.
The 14 Ct. Gold nib writes with a firm, broad to medium line, the hooded nib arrangement precludes any flex but Parker managed to achieve a very pleasing 'soft' feel with their Gold nibs.
The colour is most attractive, it is definitely a red, the American version of Burgundy is more of a brown colour than red. In the U.S.A. the English colour is often referred to as 'Bloody Burgundy', the adjective not having the same vulgar connotations as it does in the U.K.
The box is brand new, it is very high quality and will serve well for protection and display.
At around sixty years old this is a remarkable top quality vintage pen. The 51 is the first choice of many collectors as a daily user, it is totally reliable, stylish and very practical with a great deal of prestige.