Black Maria.

What moves the price of this card

The Black Maria on this page is the Normal printing from Kingdoms of Intrigue Pre-Release Cards, and it trades at $1.59 in near mint condition. The same name is on 8 other printings: One Piece Promotion Cards ST04-011 at $36.04, One Piece Promotion Cards ST04-011 at $13.05, One Piece Promotion Cards OP08-074 at $12.35, One Piece Promotion Cards OP08-074 at $11.73, Two Legends OP08-074 at $11.40, One Piece Promotion Cards ST04-011 at $3.69, Two Legends OP08-074 at $2.21, One Piece Promotion Cards OP11-089 at $1.82, so read the set, the number and the rarity together before comparing prices.

Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.