of Property. Whoever omits to notify the competent authority, as soon as circumstances and material conditions enable him so to do, (a) upon his finding an object mislaid or lost by another person, or a treasure (Art. 680); or (b) upon acquiring or receiving in any capacity whatsoever objects of any nature originating, without his knowledge, from a theft or another offence against another person's property, the felonious origin of which he subsequently suspected, knew or ascertained, is punishable with fine or arrest not exceeding one month.