¯\_(ツ)_/¯
It's an idle, low-effort attempt to collect and document at least one slab from every trading/sports card grader, with a few slabs for coins/stamps/comics/etc as well.
There's an attempt to include _some_ information about each grader as well. Some are big names, some are long-gone, some are really just ebay stores, some are mom-and-pop resale shops making their own labels.
Primarily, this data was organically collected by seeing listings and/or pictures of slabs (shouts out to everyone who has sent me links/pics over the years!). Additional places that I grabbed info from to seed the grader list:
haha yes