Need suggestions as to who to contact re: Selling 'cells'.

[Paper Roses]

On behalf of my daughter, I am asking if anyone in this group can suggest an auction house or buyer for animation art.
She has 4 'cells' bought about 10 years ago that she no longer has room for. Latest move has put her in a tiny apartment with very little wall space and there is really no place for them to be safely stored.

I don't even know what they are but upon any suggestion, she will contact the company you might suggest.
The firm from which she bought the cells is no longer in business so she can not sell them back. If you might need further information, I can get it from her.

Anyone have a suggestion?
Thanks,
PR

On Edit: The cells are by Chuck Jones

[Paper Roses]

1. Too late to edit, I'm told these are called 'cels'.

Still need the help if you can.