Mishnayos Bava Metzia Perek 2 Mishnah 8

If one found scrolls, he reads them once in thirty days in order to ventilate them and prevent mold. And if he does not know how to read, he rolls and unrolls them in order to ventilate them. But he shall not study passages in them for the first time, as he would leave the scroll exposed to the air for a lengthy period, thereby causing damage. And another person shall not read the scroll with him, as each might pull it closer to improve his vantage point, which could cause the scroll to tear. If one found a garment, he shakes it once in thirty days, and he spreads it out for its sake, to ventilate it, but he may not use it as a decoration for his own prestige. If one found silver vessels or copper vessels, he may use them for their own sake to prevent tarnish and rust, but he may not use them to the extent that he will erode them. If he finds gold vessels or glass vessels, which are not ruined by neglect, he may not touch them until Elijah will come and identify the owner. If a person found a sack or a basket or any other item that it is not his typical manner to take and carry because it is beneath his dignity, he shall not take it, as one need not demean himself in order to return a lost item.

מָצָא סְפָרִים, קוֹרֵא בָהֶן אַחַת לִשְׁלֹשִׁים יוֹם. וְאִם אֵינוֹ יוֹדֵעַ לִקְרוֹת, גּוֹלְלָן. אֲבָל לֹא יִלְמֹד בָּהֶן בַּתְּחִלָּה, וְלֹא יִקְרָא אַחֵר עִמּוֹ. מָצָא כְסוּת, מְנַעֲרָהּ אַחַת לִשְׁלֹשִׁים יוֹם. וְשׁוֹטְחָהּ לְצָרְכָּהּ, אֲבָל לֹא לִכְבוֹדוֹ. כְּלֵי כֶסֶף וּכְלֵי נְחֹשֶׁת, מִשְׁתַּמֵּשׁ בָּהֶן לְצָרְכָּן, אֲבָל לֹא לְשָׁחֳקָן. כְּלֵי זָהָב וּכְלֵי זְכוּכִית, לֹא יִגַּע בָּהֶן עַד שֶׁיָּבֹא אֵלִיָּהוּ. מָצָא שַׂק אוֹ קֻפָּה, וְכָל דָּבָר שֶׁאֵין דַּרְכּוֹ לִטֹּל, הֲרֵי זֶה לֹא יִטֹּל: