RARE Vintage 1954 Convair R3Y Tradewind "First Flight" Zippo Case - Allison Turbo-Prop Production Era: 1953–1955 Confirmed by the Bottom Stamp: Pat. 2517191 / Pat. Pend. This is a high-level aviation collectible commemorating a specific moment in aerospace history: the first flight of the Convair R3Y Tradewind on February 25, 1954. Powered by Allison T40 Turbo-Prop engines, this massive flying boat was a marvel of the era. These lighters were likely produced in very limited numbers for the engineering team or program executives at General Motors/Allison. The "First Flight" Factor: Most aviation Zippos from the '50s feature a generic logo (like the Convair or Allison logos). This zippo is a "provenance piece"—it specifically marks Feb 25, 1954. This appeals to aircraft history collectors and engine tech colector and of course zippo collectors. Engraving: Features a detailed profile of the R3Y Tradewind and the Allison Turbo-Prop logo. Condition: Good vintage condition. The case shows honest pocket wear and surface scratches consistent with its 70-year age giving it a great patina. No dings present. The hinge remains pretty tight for that age. No parts missing. Everything functions as it should. Note : This case is paired with a brand-new, unfired 2013 Zippo insert. The insert does have a flint but no fuel since that is not allowed. The insert is not the period correct insert but the value lies in the rare convair case. A 2517191 insert can easily be put in it to make it period correct and add value to it. I use postNL as shipping method.