Shane Monahan Rookie Cards

Do you know that the most expensive Shane Monahan Baseball Rookie Card (Upper Deck Shane Monahan #431 Seattle Mariners Rookie Class 1998 Baseball Card) was sold on eBay in 03/2026 for $75.00 while the cheapest Rookie Card (Shane Monahan 1998 Bowman's Best Refractor Rookie Card RC #191 310/400) changed hands for only $0.49 in 07/2012? The month with the most cards sold (3) was November 2025 with an average selling price of $2.19 for a Baseball Card of Shane Monahan. Sold items reached their highest average selling price in March 2026 with $38.67 and the month that saw the lowest prices with $0.49 was July 2012. In average, a Rookie Card from Shane Monahan is valued at $1.95.

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