If an auction company makes a catalog available to you, be sure to get one. It can help you to know the description of the items sold and also how it will be sold. There may be a quantity of the commodity in each lot being sold and they may be for all one bid or so much apiece. Auction staff will be happy to explain these differences to you and your catalog will help you follow along. This way you won’t miss an item that is important to you.