ebuild contains HOMEPAGE="http://www.suse.com/us/private/products/suse_linux/prof/packages_professional/sgi-fonts.html" But the website is not available.
I can't find a good URL for these anymore. They were part of the "SGI ProPack", but the newer info is behind a registration/paywall, and the older pages are empty and broken. Maybe No_Homepage is best here?
Arch Linux seems to be using the following URL: http://oss.sgi.com/projects/sgi_propack/ You can see the AUR package details at: https://aur.archlinux.org/packages/sgi-fonts/
Using suggested homepage above now.