How to Read an Auction Catalog

An auction catalog is the main source of information about what is being sold, but it is written in a compact style that can be confusing the first time you see it. This guide is for new buyers and casual collectors who want to understand what each part of a catalog entry means and what it does not promise.

Start with the sale information

Before you look at individual items, read the front matter. This is usually the first page or the top of an online sale page, and it sets the ground rules for everything that follows.

• Sale date and time: Note whether the sale runs on one day or several sessions, and which lots fall in each session.
• Preview hours: These tell you when you can see items in person before bidding.
• Bidding methods: Look for whether the company accepts in-person, online, phone or absentee bids.
• Fees and payment: The catalog normally states the buyer's premium, accepted payment types and payment deadlines.
• Pickup and shipping: Removal dates and shipping options are often listed here and are easy to miss.

Understand lot numbers and order

Each item or group of items is a lot, and each lot has a number. Lots are usually sold in numerical order, which helps you estimate when an item you want will come up. Some auctioneers sell at a steady pace, so if you know the starting time and the approximate rate, you can plan when to arrive or when to be ready on the phone.

Watch for letter suffixes like 125A. These are lots added after the catalog was first numbered. Also look for notes saying a lot has been withdrawn, which means it will not be sold.

Read the description carefully

A lot description typically includes a title, a short description, materials, measurements and sometimes a date or maker. The exact wording matters, because many auction houses use set phrases to signal how confident they are.

• A plain attribution, such as a maker's name with no qualifier, usually signals the most confidence.
• Words like attributed to, in the style of, school of or after usually signal less certainty or that the item is not by the named maker at all.
• A "lot of" or "box lot" description means you are buying everything in the group, often without each piece being listed.

Each company defines its own phrases, often in a glossary near the terms of sale. Read that glossary instead of assuming the words mean the same thing everywhere.

Check measurements and photos

Measurements are often given as height by width by depth, in inches, centimeters or both. Compare them to a space in your home or vehicle before you bid. Photos can make small items look large and large items look small.

Look at every photo, not just the first one. Additional images often show the back, the base, signatures, marks or damage. If a key view is missing, such as the underside of a piece of pottery, that is a reason to ask.

Interpret estimates correctly

Many catalogs give an estimate, such as a low and high figure. An estimate is the auction company's opinion of a likely selling range. It is not a guarantee, a minimum or a maximum. Items can sell well below or far above the estimate depending on who shows up.

Some catalogs also list a starting bid, which is simply where the auctioneer plans to open. Estimates also do not include the buyer's premium or tax, so the final cost to you will be higher than the hammer price.

Look for condition notes

Some catalogs include short condition notes in the description, while others list none at all. The absence of a condition note does not mean an item is perfect. Many auction houses state that items are sold as is and that buyers should rely on their own inspection.

Common condition shorthand includes words like chips, hairlines, losses, restoration, replaced parts and wear consistent with age. If the catalog says little, ask for a condition report or inspect the lot in person.

Mark up your catalog

Whether you use a printed catalog or a saved online list, make notes as you go. Write down your maximum bid for each lot, any questions, and anything you noticed in person. Cross out lots you have decided against so you do not get drawn in on sale day.

Quick checklist

• Read the sale information, fees and pickup rules first.
• Note the lot numbers and session for items you want.
• Look up what the company's attribution phrases mean.
• Check measurements and every photo.
• Treat estimates as opinions, not guarantees.
• Ask for condition details whenever the catalog is silent.