Copies are matched across platforms by set, card number, and language (registry v1 — exact normalized matching). FMV figures combine licensed market data calibrated against observed sales, provided as-is.
1 copy for sale across Courtyard · from $150
2025 Topps Silver Pack 1980-81 Topps Chrome Basketball #TC-KK Kon Knueppel (PSA 10 GEM MINT)
$150USDC
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2025 Topps Silver Pack 1980-81 Topps Chrome Basketball #TC-KK Kon Knueppel (PSA 9 MINT)
$30.40USDC
CourtyardPolygon
