Now, you're going to have to excuse the Royalist's idiocy, but I didn't even know there was a £100 banknote. But it seems there is, in the super rich haven of the isle of Jersey (where else) and a new one is to be decorated with Chris Levine's celebrated holographic portrait of the Queen, created from a series of 10,000 photographs taken in 2004, and produced in collaboration with holographer Rob Munday.
Today's Telegraph has an interesting meditation on the work, and suggests, "the banknote stands as not just an artwork in itself, but as a symbol both of royal power and of the relationship between art and money."