Less than the amount of ink I used in this reply.
1988 Donruss Don Mattingly baseball card number 217A 1988 Donruss Don Mattingly baseball card number 217 has a book value of about .25 cents in near/mint -mint condition. Professionally graded cards will sell for more. Condition is important.Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color. Any or all flaws will devalue the card significantly.
1991 Donruss Don Mattingly card number 107A 1991 Donruss Don Mattingly card number 107 has a book value of about .60 cents in near/mint -mint condition. Professionally graded cards will sell for more. Condition is important. Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color. Any or all flaws will devalue the card significantly.
I paid less than $10.00 on Ebay
Less than 25 cents.
Less than 50 cents.
That card is worth $1.00 in MINT condition, with no flaws.
60 cents in NM-MT Condition
1993 Hostess Don Mattingly card number 28A 1993 Hostess Don Mattingly card number 28 has a book value of about .75 cents in Near Mint - Mint condition. Professionally graded cards will sell for more. Condition is important. Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color. Any or all flaws will devalue the card significantly.
1990 Topps Don Mattingly card number 200A 1990 Topps Don Mattingly card number 200 has a book value of about .50 cents in Near Mint - Mint condition. Professionally graded cards will sell for more. Condition is important.Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color. Any or all flaws will devalue the card significantly.
1993 Upper Deck Don Mattingly card number 36A 1993 Upper Deck Don Mattingly card number 36 has a book value of about $1.25 in near/mint -mint condition. Professionally graded cards will sell for more. Condition is important. Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color. Any or all flaws will devalue the card significantly.
A Don Mattingly All Star card is worth about $5.00 if in mint condition.
1988 Fleer Headliners Don Mattingly card number 1A 1988 Fleer Headliners Don Mattingly card number 1 of 6 has a book value of about $1.50 in Near Mint-Mint condition. Professionally graded cards will sell for more. Condition is important.Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color. Any or all flaws will devalue the card significantly.