I take it by 16 in a series of 26 you mean it is a limited edition collectible. The 1999 World Series win by the Yankees marked their 25th world series title so I'm not sure why the number of baseballs signed is 26 . Either way this limited 16/26 baseball will have no higher value than another Team Signed baseball not part of the series of 26.
An Official Major League Baseball would be most desired by collectors for the signatures, and extra money would not be spent otherwise. In most cases Limited editions are just a marketing ploy by the promoter to sell the item. The only way the 26 baseballs would have higher value would be if no other team baseballs were signed by the 1999 Yankees, and I assure you this is not the case.
A 1999 World Series Champs New York Yankees Team Signed Baseball with the key signatures: Torre, Jeter, Williams, Giambi, Clemens, Mussina, Rivera, Posada, Matsui, Soriano, and Pettitte is worth about $800.-$1,100. Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Prices may also vary based on the amount of signatures, and key signatures acquired. The more complete the baseball with key signatures the more valuable. In a recent auction a 1999 New York Yankees Team signed baseball sold for $678. another sold for $1,139. If the signatures are not properly authenticated the baseball could sell at half the market value or less. For more information on team signed baseballs, links to full team rosters, key signatures, and price guide visit the following page from the link I left below.
Yankees, Yankees and Yankees
the Pittsburgh pirats faced the Yankees in the world series
The Yankees lost to the Florida Marlins in the 2003 World Series.
The Yankees World Series record is 27-13.
The Yankees will win 2009 World Series
Yes, the Yankees won 27 World Series Championships.
No, the Atlanta Braves never beat the Yankees in the World Series. The Yankees did lose to the Milwaukee Braves in the 1957 World Series.
The Yankees have appeared in 40 World Series, having won 27.
They have played in 40 World Series and have won 27. So they have lost 13.
The Cubs last won the World Series in 1908. Since then, the Yankees have won 26 World Series.
The Yankees won their 12th World Series in 1949.
The New York Yankees did not play in the 1945 World Series.