Also I am not sure if these are the same as International Reply Coupons ?
Thanks for your advice,
We are trying to get a birth certificate from an anagrafe in Italy and the Anagrafe is asking for a "coupon internazionale" worth EUR 25 for the administrative expenses. I asked in the post office in Kloten and they say they do not sell those anymore. Does anyone know where I can buy these coupons?