Hi,
It is a Olympus DC. I have one. It is a nice camera. You will need a battery adapter for it to function. In fact at the moment, from the photograph you posted, it won`t even work. Why? The self-timer is cocked. If the self-timer is cocked, and there is no battery, or there is a dead battery in the cahmber, the camera, will not release the shutter. Until a working battery is inserted the camera you posted is a good as rotten fish to eat.
BTW I paid 15$. Is it worth more? I do not know. It is up to you. But is looks to be in rough shape. I would not go higher than 15$. If it had a case, lens cap, look better I would go as high as 45USD$.
Mike