That is a sweet copy of SC #22. Looking at the damage on the front and back cover (looks like there is a chip out of the tip of the top left corner on the back), I would put it in the 6.0 range provided there are no other spots/stains (there is one in the L in "Lantern").
I'm confused. If you're looking at the same #22 that I'm looking at, it's > 6.0 !!!
Don't get me wrong - structurally it is a very sweet book. However, the corner chip should drop it to an 8.0/8.5 to start with. Add in the spine wear, small stain (which CGC is hammering right now, along with dust shadows, as I have recently had the displeasure of finding out ) and taking the fact that a scan will not show NCB bends/light creases it looks like a 6.0/6.5 range book to me.