Grading Guides

1992 Originally produced in conjunction with the First Edition of The Overstreet Comic Book Grading Guide, the OWL (or "Overstreet's Whiteness Level") Card is a comic book grading tool used to evaluate paper color...

Bulk box of 100 OWL Cards.

Bulk box of 150 OWL Cards.

TEMPORARILY UNAVAILABLE 1992 The comic book collecting accessory that no true fan should be without! Dazzle your friends. Impress total strangers. Be the envy of onlookers at the next Comic-Con as you whip out your exclusive OWL Card Holder and...

1994 Of course you know that since 1970, the name Overstreet has come to symbolize a vast array of intricate knowledge about American comic books, but did you know that you can own an original, uncirculated copy of the pioneering work on comic book...

2003 Since 1970, the name "Overstreet" has come to symbolize a vast array of intricate knowledge about American comic books. While The Overstreet Comic Book Price Guide helps you decide what comics to look for, this new, extensively updated edition of...