Baba Metzia 2:2-3

Baba Metzia 2:2

The following objects, if found, must be announced: fruit in a vessel or a vessel as it is, money in a purse or a purse as it is, heaps of fruit or of money, three coins stacked one on top of the next, sheaves in a private domain, homemade loaves of bread, sheared wool from the craftsman and jugs of wine or oil.

Baba Metzia 2:3

If a person found pigeons tied together behind a wall or a fence, or on a path in the fields, he may not touch them (because their owner may have put them there intentionally). If a person found something on a trash heap and it was covered, he may not touch it; if the item is uncovered, he should take it and have it announced. If a person found valuables in a ruin or in an old wall, he may keep them. If he found valuables in a new wall, something found on the outer side belongs to him and something found on the inner side belongs to the homeowner. If the homeowner rented the property to others, then even something discovered inside the house belongs to the one who found it.