much like a social security number an employer identification number ein is a federal nine digit number that identifies a business entity the internal revenue service irs issues eins and requires their use on all tax filings during the entire life of a business
Game used items such as the ball in which Mark McGwire hit his 70th home run of the 1998 season sold for $3 million. The most expensive piece of sports memorabilia ever sold at auction was a New York Yankees baseball jersey that was worn by Babe Ruth during the 1920 season.
The New York Yankees, worth $2.5 billion, are baseballâs most valuable team, as they have been each of the 17 years Forbes has compiled this scorecard. The only other U.S. sports team worth more than $2 billion is the Dallas Cowboys ($2.3 billion) of the NFL.