Sorry for the late reply so finally got chance to take another look at them. They are genuine VW. But I can’t say if they are made by Thule for VW.Did you get any further information on these?
Quite often the VW bars are Thule (there were for my Golf) so that may be the case.
Be nice to get £50 for them.The value is the price you'd be happy letting them go for.
Then please make a post in the For Sale section for this price and see what offers you get.Be nice to get £50 for them.