The 8 Most Valuable Seiji Kobayashi Cards

The most valuable Seiji Kobayashi card is the 2021 Topps NPB Seiji Kobayashi Gold Rainbow Foil #106 at $45.00 as of November 4, 2026.

By Ripbin Research · Updated 2026-11-04 · prices from live market data

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The 8 most valuable Seiji Kobayashi cards in the Ripbin catalog (2021) carry a combined raw market value of $83.66, topped by a $45.00 card.

Sets in this guide

2021 Topps NPB 2021 Topps Chrome NPB Nippon Professional

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