Martina Navratilova Memorabilia
The most expensive item with a signature of Martina Navratilova (Martina Navratilova Autographed Tennis Ball Wimbledon Shadowbox) so far was sold in November 2015 for $299.95 while the cheapest item (Martina Navratilova signed tennis ball from Madison Square Garden Nov.15,1994) found a new owner for $0.99 in July 2015. Sold items reached their highest average selling price in September 2013 with $125.00 and the month that saw the lowest prices with $7.99 was June 2013. In average, an autographed item from Martina Navratilova is worth $20.18.
