This is a Maisto Die Cast Lockheed SR-71 Blackbird Jet Aircraft.  It is made of metal with plastic trim and had good detail, note the markings.  It is about 4 3/4 inches long and has a wing span of about 2 1/2 inches.  I bought this as part of a job lot and it is in good condition, but the landing gear has been removed. 

I will gladly combine these small items to save on the shipping.  Each additional Die Cast item would be just $.50 for shipping.