On the 1st January 1968, the départements of Seine and Seine-et-Oise were replaced by seven little départements, including the city-département of Paris, and the Val-de-Marne.
In a little passing of years, it has been a lot to remember and adapt for the inhabitants : introduction of the postal code in 1964, new number for their new département in 1958... A pictorial cancellation helped them remember that Val-de-Marne is 94.
The stamp is the Marianne of Henry Cheffer. This 0,40 franc (new franc, another newelty of 1960) was issed January 1969, two years after a 0,25 and a 0,30 in November 1967. This is the fortieth anniversary of this series that will be commemorated with a booklet next 12th November. A series created in 1954, lost the competition against the Marianne of Muller, and was finally adopted by minister Yves Guéna ten years after Cheffer died.