Lost: Friendly Young Dog Named Gizmo

We don't know the breed as he was given to us. Is black and white with some brown. He is verry friendly and not aggressive to ppl or other dogs. We forster for Southern Cross animal rescue and have had at least 8 diffrent dogs around him with no issues. He is some times food aggressive. His name is Gizmo and he is not fixed. Gizmo is not evin 1 year old and stands about knee high.