1991 Topps Mark McGwire #270

Mark McGwire · Topps · Base

1991 Topps Mark McGwire #270

Player

Mark McGwire

Set

1991 Topps Base

Year

1991

Card #

#270

Condition Grade

PSA 6 (EX-MT) - Centering is significantly off (heavy towards the right and bottom), noticeable edge chipping on the right border, and slightly soft corners.

Category

Base

Manufacturer

Topps

Demand Level

Moderate - Very high supply due to 1991 production levels, but McGwire remains a highly collected player for nostalgia and statistical achievement.

Valuation

Raw (Ungraded) Value

$0.50 - $2.00

Graded Value

PSA 8: $10-15, PSA 9: $25-35, PSA 10: $250-300

Comparable Sales

Raw copies routinely sell for under $1.00 at card shows. PSA 10 copies have reached $300+, but PSA 9 copies often sell for under $30, making high-grade perfection the only way to realize significant value.

Description

A classic early 90s Mark McGwire card from the iconic Topps 40th Anniversary set. The card features 'Big Mac' in his Oakland Athletics home white uniform making a slide into a base. The design includes the distinctive 1991 color-coded borders and the 'Topps 40 Years of Baseball' logo in the upper left corner.

Key Features

Features the 40th Anniversary Topps logo. McGwire is a member of the 500 Home Run club, making his base cards popular for set builders and player collectors.

Authenticity Indicators

High confidence. This card is from the 'Junk Wax' era with extremely high production volumes; it is almost never faked. Correct recycled card stock texture and dot-matrix print pattern visible.

Flaws to Note

Significant right-side centering issues. The white border is much thinner on the right than the left. There is visible whitening and chipping on the right edge. Bottom-right corner shows signs of wear.

Selling Guide

Where to Sell

eBay (as part of a lot), COMC, or local card shop bulk bins. Not recommended for individual sale due to shipping costs exceeding card value.

Selling Tips

Do not grade this specific copy as the centering and edge wear will prevent a high enough grade to cover the fees. Best sold as part of an Oakland A's team lot or a Mark McGwire player lot to maximize shipping value.

Scanned on 4/30/2026
1991 Topps Mark McGwire #270 | Baseball Card Scanner