what is a penny sleeve for cards Corner Cut Card Sleeves (100 count) Single (1 unit) corner design for easy insertion and easy removal of cards Made to fits standard Ultra PRO - Penny Sleeves®

Which cards should we be looking at more closely

# 2003 Pikachu Project 4 Cards 2004 Pikachu Project 1 Card 2005 Pikachu Project 5 Cards 2006 Pikachu Project 1 Card 2009 Pikachu Project 18 Cards 2010 Pikachu Project 2 Cards 2014 Pikachu Project 2 Cards 2017 Pikachu Project 7 Cards 2018 Pikachu Project 1 Card 2019 Pikachu Project 4 Cards 2020 Pikachu Project 1 Card 5ban Graphics 2442 Cards 5ban Graphics is the card design studio for Creatures Inc., the developers of the Pokmon TCG

To consolidate my findings, I cross-referenced the information from MoneyMade with raw market data from price aggregators

Or you can look at the edges (preferably with some sort of optical magnification)

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