Vintage circa 1958 Airfix 1/72 scale Mustang P-51D "Fool's Paradise IV" buying plastic model kit, original bag complete

This kit was originally released by Airfix in 1958 and re-released again in 1963 in a bagged version like this one. It's likely complete in a sealed bag although it's unknown if it was opened in the past. The gentleman I got this buying from looked like Methusaleh's uncle so he may have had it for 60+ years. Fool's Paradise IV P-51D