Here's a possible tough identification for you. I believe this is a GoodYear blimp but only because GoodYear used to have one that this resembles.
The internal body (with external rear wings and cabin) is diecast metal. The red & silver elements are molded plastic. It has literally no markings anywhere. It also appears the red plastic may have been broken and (not pictured) there is a round hole underneath between the cabin and the wings.
Here are some pictures with a Goodyear blimp picture at the bottom to show the similarity:




