Hello, due to the shape of the body and short stubby wings I believe this is Trench Art of a WW2 German V1 Rocket. The solid brass ( body 4.5" x wing span 4.5") item has a nice original aged patina to the brass and I believe is a lovely period Trench Art piece.

One side of the body has been filed flat so the rocket sits straight and does not roll to one side.I believe that this could be a unfinished Trench Art piece which would had a stand and it's pulse engine attached but I might be wrong?.