The income was from personal appearances, baseball card shows and the sale of baseball memorabilia.
The sale of baseball memorabilia is an industry that surpasses $1 billion a year.
He has patterns for more than 800 different gloves, many gathered from contacts with collectors of baseball memorabilia.
"He has one of the finest collections of baseball memorabilia in the world."
He has one of the finest collections of local baseball memorabilia.
He also knows that Sharon's husband, Barry, has the most extensive collection of baseball memorabilia in the world.
After the addition of other baseball memorabilia, the exhibit became so popular that sentiment for a national museum soared.
Michael left the Yankees in 1982 to pursue full-time his lifelong love of collecting baseball memorabilia.
Rose's den at home has been filled pridefully with his extensive baseball memorabilia.
Imagine finding a vintage bit of baseball memorabilia in a stamp sale.
