One more question. Just got this back from SGC and am a little surprised by the grade. Seems centered, great corners, front is flawless (to my eye anyhow)...BUT...the back does have some yellow age spotting as you can see. I was hoping for a 6...got the 4...would the back showing age like that knock down the grade? I didn't even consider, but now wondering how the heck this is a 4? I'm sure a lot of pre-war cards show this type of aging, is this a normal downgrade??
