Beautiful set of former French colonies from 15 different regions, some much better represented than others, such as Annam et Tonkin or Côte d'Ivoire. For the 1st, there's a very interesting study of 1st issues, including varieties of blocks of 4, pairs and strips (some signed and certificated). For the 2nd, there are some good values, notably in postal parcels. The total value of around 30,000 euros seems to have been correctly calculated in 2005. Updated to around 35,000 euros today.