You can't tell from the scan, but the cast shadow
on the boy's neck shines sort of metallic. Not
flat black like his hair or other shading. When
you turn the cel over there's this, I dunno, thing
tapped to the back of it. It's clear on one edge
but the rest of it is black.

 Does anyone know what it is or why it's there?
I've never seen anything like it on my other cels.
If anyone can shed some light on this, that'd be
great! 

 Thanks^_^
-Amy