Question: May a person ignore (and not pick up) a lost object that has no identifying features?

Short Answer: While Rav Yosef Shalom Elyashiv zt”l and others ruled that one may ignore such an object, Rav Moshe Feinstein zt”l ruled that a finder must pick up the object and hold onto it until Eliyahu HaNavi comes and the true owner is established.