How is the lost item described, and what are the meanings of al-afas and al-wikaa?

There are trusts in the markets. Is it permissible for a person to take this lost item and say, "I know it," or should he give it to the trusts, who in turn have a lost and found section?
He should describe it or give it to them.
Q: There is a board at the back of the mosque that says "Lost and Found." A lost key, meaning valuable items that are lost, are placed there. Is there any harm in this?
A: By Allah, it is acceptable, as a form of description, but it indicates the benefit of the Muslims, meaning that the lost items are in this specific place. May Allah will that there is nothing wrong with it, because it is a form of description.
Q: Is advertising in newspapers considered a form of description?
A: It appears to be a form of description, but it is not sufficient. Otherwise, it is an additional description. If he describes it in the newspapers and describes it in the gathering places of people, that is the perfection of sincere advice.
Q: What is the meaning of its afas?
A: Al-afas is the binding.
Q: And its wikaa?
A: Al-wikaa is the binding, and its container is the cloth in which it is, or the bag in which it is, or the box.
Q: And the afas?
A: Some scholars said: Al-afas is the manner of the knot. The point is that he should pay attention to the thing that prevents liars from deceiving, meaning he should strive for clear characteristics in the binding and the container, even if al-afas means the manner of the knot.
The point is that he should pay attention to the things that assure him that if the owner recognizes it, he is truthful.