A tank cap pf motorcycle Harley Davidson Dyna Super Glide offered to the Pope Francois on the occasion of 110th anniversary of the brand in June 2013, is displayed on February 5, 2014 at the Grand Palais in Paris on the eve of an auction of luxury vintage cars. vintage motor cars, collection motorbikes will be auctionned by British auction house Bonhams on February 6. AFP PHOTO FRANCOIS GUILLOT