...a model sheet, also sometimes known as a 
character sheet. And yes, those are the pictures 
yous see in artbooks...you could basically 
compare it to a hanken mono cel in the respect 
that there's only one, and it's used for images 
(like on the studio website, artbooks, etc.).And 
in effect, unlike hanken mono it was used in 
production some way. That was the sheet they used 
to define her from different angles, in animating 
her, basically, a guide for her. So it's bound to 
be more expensive than a regular cel, but I've 
never seen one for Nadesico like that...that's 
really cool.