^ Line seed oil is a very good means to conserve the Patina, and still make it look very nice. It dries over time, so after polishing it will not soil your clothes.
If you really want to conserve iron or steel, and even make it paintable, there is nothing like microchrystalline waxes. In Germany I use 'Kadosin', but it is meanwhile hard to come by – like all good working things.
I have written a lengthy paper about how it works and how to apply, so if anyone is interested? Would have to translate it though, all in german
Have got two domed nuts for the rear axle, but certainly not the original ones with the "R". Unbelievable what prices those nuts fetch theses days. Maybe someone should start production of such nuts..
Anyway i hope the "clonk" will be gone when i assemble all. Chain and chainwheels are aligned, tension is ok if a bit slack, but then i heard it should better be that way. If it still produces those sounds i will have to disassemble the rear hub once more. Arrgh.
Next site: Headset. Has too much play ..