1,772. Neglecting (or Unable) to Say "Written and Signed"

Hilchos Geirushin 7:17

Let’s say that an agent delivers a get outside of Israel but he gives it to the woman in private, or he gives it to her in front of two witnesses but doesn’t say that it was written and signed in his presence. Even if she has already re-married, he should take the get back and give it to her again in front of two witnesses, saying that it was written and signed in his presence. If he doesn’t do so, the divorce is invalid until the signatures are validated.

Hilchos Geirushin 7:18

If an agent delivers a get but he isn’t able to say that it was written and signed in his presence before losing the ability to speak, the signatures must be validated, after which he may give it to the woman.