I just fitted an obsolete tax disc to my bike, they have been out of use for six years now, but like the black metal registration plate she wears at the back, it contributes to the 'look and feel' of a historic vehicle. This one ran out twenty years ago, my CB400F2 was already 22 years old then. I hope it doesn't get pinched though, last thing I heard these discs are starting to sell well!