If there's purple paint on the top half and either white or gold on the bottom under that orange crap, it's a 1967 Bonneville tank. There should be two screw holes on each side for badges. Nice original tanks are worth a fair amount.
2015 BMW R9T, 2010 Ducati 1098 Streetfighter S
2009 Kaw 650 Versys, 1967 Triumph 650 TT Special