One of those things about owning a 25 year old car is that random things are missing.
If you aren't the original owner (i am not) it makes you wonder, "when and how did that disappear?" Of course that is why we have Pelican, swap meets, eBay, etc. :-)
I have no need to make my car concours-perfect, but I like to find the missing bits and I decided to make a fuse box label using a card stock and the wide copier at my local Fedex Kinko's. It came out pretty good, so I made a few extra copies. If others are missing this item, and have also found that they are NLA on Pelican, let me know and I will make them available for a small fee to cover my costs.
The source was a few pdf scans that I received a while ago from another Pelican.
The part number is 911.612.243.03