Italian to English Other Certificates, Diplomas, Licenses, CVs

I recently translated a birth certificate for a regular client agency - not my usual line of work! I had a frantic Skype message that they had forgotten to send me the certification text and the client was waiting in their office. "Two minutes" I said but then came across this term. I know what it is of course: the use of inked rubber stamps, applied partly on a copy of the original and partly on the translation, as a means of authenticating the certified translation. Stamps are much rarer in the UK of course (as are certified translations) and couldn't find a translation anywhere let alone a "recognised term". Subsequent searches have proved no more fruitful. For future reference, I should be grateful for suggestions from anyone more familiar with the term, in case I need to find it in a hurry again!

" .. il testo sopra riportato è la traduzione fedele e accurata del testo originale, a cui è allegato a mezzo di timbri di congiunzione".