Wonder Woman #19 VARIANT signed Sebastian Fiumara NM- COA

Sebastian Fiumara. Wonder Woman #19. NM+/MT = 9.8 NM+ = 9.6 NM= 9.4 NM- = 9.2 etc. Do you provide any form of Certificate of Authenticity?. Books marked with the following grades fall on the grading scale as follows.

This product would be a great fit for comic book collectors.