Royal respone from Their Royal Highnesse The Prince and Princess of Naples on te occasion of their 50th wedding anniversary.
The couple married on 7th October 1971 in a Roman Catholic Church in Tehran, Iran.
The reply is in the form of a card in Italian thanking me for my good wishes.
Card

Translation
Particularly grateful for the kind greetings on the occasion of our 50th wedding anniversary. We sed you our best regards.