There’s one fact about antique tractors: there is no official definition for what one is. However, antique tractor shows and clubs have their own rules and regulations. In fact, you’ll find most clubs standing by the “1960” rule — that is, any tractor manufactured in 1960 or earlier is considered an “antique.” The “1960” rule is a common benchmark practiced amongst numerous antique tractor organizations across the United States and continues to be seen as the most accurate ‘rule of thumb’ to classify old agricultural machinery.