French pre Euro stamps

[guyana1230]

Does anyone know why France are still allowing stamps with values in Francs to still be used?  Just had these stamps on an envelope today, from 1985, 1990 and 1991.  The 1991 has value in Euros too so that is okay.

[youpiao]

The use of old-denomination stamps is a country-by-country decision, not a UPU rule. In France, all stamps, except those of Vichy France are valid. In Italy all stamps, back to 1967 are valid. In Germany Mark+Euro denominated stamps are okay, but not Marks-only.

[janstamp]

In Belgium the use of Belgian Franc-stamps are also still valid.  You can buy them at 50% of the nominal value.