I presume that CGC could do it, but as I am a relative noob with the whole CGC system I want to double check.
I have a Signature Series comic that I got signed by Claremont and graded by CGC (8.5); however, it was not pressed prior to grading.
I want to get it signed by pressed and signed by Silvestri at the CGC in-house signing.
Since I really don't know the system, and don't want to wind up losing the Claremont signature verification, how does the CSS system work with sigs from different events?