You bought this particular book, or SC#4? I stumbled across this listing and asked the seller what name was stamped in the book, as I owned a SC#4 and used to stamp my name on the inside bottom front page. It wasn't my name my book, it was his. Seemed like a nice enough guy, I dunno know. So many folks looking figured I'd mention it.
There's another one for sale on eBay, think I recall it being raw and having a loose centerfold.
Maybe I better stop referring these books before somebody accuses me of shilling.