Intended to hang on a rack.

Here is a post with some of my trays. I don't see the 75 listed so I might have sold it before I made the scans.

I wish I still had some of the better stuff as I had some amazing racks. I sold them for what I thought was a fortune nearly 10 years ago. Little did I know they would be worth double or more today.

http://www.thechipboard.com/archives/archives.pl/bid/321/md/read/id/1125067/sbj/tray-packs-part-1-ncr/

You can also see tons of other packs in the reply posts.