I bought a Cgc comic BUT it is only in the envelope inner seal, the hard shell case is not on it. Does any one know if technically that grade still stands or did I just buy a walking dead comic in a concealed case. It’s cgc 9.6 and looks it but just wanna know the technicks behind it either. Way it’s fine , did i buy a sealed comic or is it actually still Cgc’d ? Just wondering and help?