Michael Jordan; Mars Blackmon

1991Stay in School (Set 1)#Card 4

MINT

CHCK

Predicted

PSA 9BGS 9CGC 9SGC 9

ID bfmbdh

SUB-GRADES

Limiting · Corners

MARKET VALUE

at CHCK 9 · PSA 9

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Issued Oct 19, 2026

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CARD DETAILS

PlayerMichael Jordan; Mars Blackmon

Year1991

BrandNike Trading Cards

SetStay in School (Set 1)

Card #Card 4

Variant—

EXPERT DESCRIPTION

gpt-5-mini

1991 Nike Trading Cards promotional 'Stay in School' card (Set 1, Card 4) pairing Michael Jordan with the Mars Blackmon character. The front features a black-and-white photo with large red STAY IN SCHOOL lettering; the back carries the PSA slogan "Don't be stupid, stay in school." This is a non-standard promo issue produced by Nike as part of an awareness/branding campaign rather than a mainstream sports card release.

chck.ai grades are opinions based on automated image analysis, not appraisals. Not investment advice; no guarantee of resale value.