There are some amazingly gorgeous cartoon images on display on slappy427's Flickr page. Classic painted comic book covers, model sheets, ViewMaster 3-D images (see above), production drawings and promotional art from Hanna Barbera.
There's a lot of oddball H-B stuff that you may not have seen before...
This is only a tiny fraction of the cartoony delights
waiting for you over on slappy427's Flickr page.