Lindberg is one of the early plastic kit manufacturers and the Betty is an old kit. As advancements in aircraft were made Lindberg made models. So the early Lindberg models of the F-104, F-8 Crusader, F-11-F 1, F-100, F-7 Cutlass, and AD4 Skyhawk (Aircraft/Douglas) were models of the prototype aircraft, i.e. the test-bed aircraft. Revell and Monogram survive today, as does Lindberg, but Aurora, Hawk, Stromberg, Comet, Williams Brothers, and several other small manufacturers have gone out of business and their molds have been sold. A lot of Aurora mold were destroyed before they went out of business. Lindberg has some very nice old kits such as the JN4 Jenny, the Locheed Vega, and several old car models.Also of note is that Lindberg models generally scale out very well.