Skybox Prototype card values

Current market values for graded cards from Skybox Prototype, by grade, from real comparable sales. Track your whole collection — with a 0–1000 protection score and a broker-ready insurance schedule — free.

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Show3 of 3 cards

1990 Michael Jordan #41PSA 10$825
1990 Magic Johnson #138
1990 David Robinson #259-6.3% 1W

Values are informational estimates from recent comparable sales — not a certified appraisal, insurance, or financial advice.