Are (really) old stamps still valid?

You can continue to use old stamps. All stamps from October 2, 1961, including those in Belgian francs, remain valid for:

  • a non-priority letter within Belgium
  • International letters. In this case you should also stick a blue A Prior label on your letter.

You can not use old stamps on priority letters within Belgium. (You need a prior stamp with barcode in this case). Also, the old stamps are not valid to send a parcel.

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