One of the earliest Mach GoGoGo/Speed Racer items released, this small sketch pad was issued in 1966. There is some writing on the cover and several of the inside blank pages have been used, but the pictures on the inside of both the front and back covers are untouched (I think it was designed so that kids could learn how to draw the Speed Racer characters but I could be wrong).
These are incredibly rare, I've never seen one of those on eBay in almost 30 years, don't let this one get away!!