1976 Topps Mike Riordan #56

1976 Topps Mike Riordan #56 value & prices

The 1976 Topps Mike Riordan #56 is a Basketball card released in 1976. Ungraded copies carry a market value of about $1.99.

An ungraded copy is worth around $1.99, a PSA 9 around $56.72, a PSA 10 (Gem Mint) around $2,356.45, a pristine BGS 10 around $3 and063.00. That's roughly a 1184× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.

Is it worth grading?

With raw copies near $1.99 and top grades reaching $2,356.45, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.