At the time when the Netherlands, Belgium, Denmark and Norway were shopping to replace their F-104s, Dassault answered by incorporating the then new M53 engine into an F1 airframe. To appeal to European tastes the European flag was painted on the fin. Pic made with a 500mm mirror lens.
After the Mirage IIIV VTOL fighter project, Dassault built a swept-wing prototype powered by one P&W TF30 engine, the Mirage IIIF2 or Mirage F2 (centre). The planned single-seat, TF30-engined Mirage F3 interceptor was abandoned in favour of the variable-geometry Mirage G, however. The TF30-powered Mirage IIIG prototype is seen in the background. Eventually the twin-engined Mirage G8 got cancelled too in 1973 and the smaller and simpler, Atar 9K-50-engined Mirage F1, in the foreground, became the Mirage III's successor instead. Photo from: Nederlands Instituut voor Militaire Historie
Only one example of the Mystere IV N was built. It was designed as a two seat night fighter version of the Mystere IV, but now with apparent nose radome. The French Air Force chose to buy 60 North American F-86K nightfighters instead!