Polaroid Test: Disembodied Cody Head

So I inherited a Polaroid 600 Land Camera (autofocus 660) from my grandfather (my great-grand father used it right before he died in '85) along with a Praktica LTL. I bought some Impossible Project film to see if the polaroid was still good. I'm struggling a bit. XD;; >Shot in the morning, it was a little better but I lost a good swatch to probably not covering it in time.