The Certificate of Authenticity from National Comic Services reads: "The undersigned, National Comic Services, Ltd., certifies that the accompanying comic book, X-Force #10-13, is one of 250 books signed and numbered by Marc Pacella and Dan Panosian. These books were delivered to the artists by National Comic Services, Ltd., where they were signed and numbered. These books are offered exclusively by National Comic Services, Ltd. and are strictly limited to 250 copies."
Only one certificate is included as all 4 books were sold by National Comic Services as a set.