Wooden model, 1/15th scale, 16 inches long, 11 inch wingspan, with NASA metal label reading "Aerospace Edu[cational] Serv[ice] Project," wooden stand with metal Northrup/Noriar label (mislabeled M-2/F-2). 

The Northrup HL-10 was one of five heavyweight lifting designs flown at NASA's Flight Research Center in Edwards, California. With "HL" standing for "Horizontal Landing," the HL-10 was used to study how to safely land a low lift-over-drag vehicle designed for re-entry from space.