THE NEWBIE - There are many approaches to buying or selling antique tractors, including auctions; if you have never used that method, it can seem intimidating. Many fine auction businesses advertise in Antique Power magazine, and I called Mecum Auctions in Walworth, Wisconsin, to learn more about how auctions work, because Mecum offers approximately 15,000 collectible cars, motorcycles, boats, and more, per year.