One of the most collectible areas regarding Muhammad Ali is Site Memorabilia. Typically, Boxing Programs, tickets and posters from Muhammad Ali’s actual fights. Ali site memorabilia ranges from his early amateur days through to his last professional fight against Trevor Berbick in 1981. Some collectors even collect site memorabilia from his many worldwide exhibition contests which can be just as rare. The reference guide for any Muhammad Ali Site Memorabilia collector should be the 1997 Christies LA Paloger Auction guide. This book contains many photographs of Boxing Programs, tickets and Posters from the majority of Ali’s contests. The desirability and price of Muhammad Ali site memorabilia is governed mainly, and not in necessarily in this order, by: