Card Identification Guides
Work out exactly which card, set, edition, print run or variation you’re holding.
Identification
1989 Upper Deck Dale Murphy Reverse Negative (#357): How to Tell and Dated Sales
How to tell the 1989 Upper Deck Dale Murphy #357 reverse negative error from the corrected card, why it's scarcer, and dated sales by grade for 2025–2026.
Updated October 7, 2026IdentificationHow to Identify Shadowless Pokémon Cards (Base Set): 6 Checks
Tell a Shadowless Base Set card from 1st Edition and Unlimited: drop shadow, text weight, Trainer copyright line, the Impostor Oak spelling and Machamp.
Updated October 7, 2026IdentificationRed Cheeks Pikachu (Base Set 58): How to Identify It and What It Sells For
Red-cheek vs yellow-cheek Base Set Pikachu: which prints have red cheeks, the E3 promo, how to spot mislabeled listings, and dated sold ranges.
Updated October 7, 2026