Typical 4/4 time has the little (I think) has the little "1 cent" symbol that looks like "c", that, or something to that effect.
Now, if I see that symbol, the "c", but with a vertical line through it, what does that mean? I've seen it written before, but through my books I couldn't find it. I'm trying to read some CCR tunes (I know I know, but these guys are good for blues progressions

), and a lot of their tunes are in this fashion.
Doesn't this mean 1/2 time? And if so, how do I play that? Faster, slower?
Any help would be very cool.