Halakhah sa Deuteronomio 29:16: Mishneh Torah, Foreign Worship and Customs

One who finds a garment or a vessel, or coin upon the head of an idol, if he finds it deposited in a shameful manner it is permissive property, but if he finds it deposited in an honorable manner it is forbidden property. For example? He found a bag hung about its neck, a folded garment lying upon its head, or a vessel leaning upon its head, that is permitted property, because it is there in a shameful manner; and so it is with all like thereto. If he found aught the like of which is used as sacrifice on the altar of the Temple, it is forbidden property. Whereat are these words directed? At things found without the place of its worship, but if he found it within, whether it be in an honorable manner or whether it be in a shameful manner, whether it be a thing fit for the altar or whether it be a thing unfit—all that which is found within is forbidden property, even water and salt. As for Peor and Mercury, all that which is found with them, whether within or without is forbidden property. So are the stones of Mercury, even a stone apparently belonging thereto, is forbidden property.²¹Ibid. 51b. C.