TIPSY NIPPER MK.II c/n ?? HB-SPF 1960 - Constructed by Avions Fairey SA at Gosselies - Sold to Etienne Rithner - Registered as HB-SPF to Etienne Rithner - Crashed when it hit electric wires during a low-pass (pilot Etienne Rithner injured) - - We still don't know the exact c/n of this Nipper, any help will be most appreciated.