As I mentioned, you can see the card I think is a type 6 quite plainly says SC, and not SCC, for a mfg mark. I hope Steve will check his notes to see if this is a type 6 or a different type of type 6. (If I keep this up, the letters "T" "Y" "P" and "E" are going to get worn out on my keyboard!)
The backs of the other cards can give you an idea of what they looked like when telling the different ones apart.