It’s a font I downloaded from somewhere eons ago and this is the first time I used it, embellishing it a bit first.
You probably have a jillion fonts you've never used, too. :) I have several that I downloaded a long time ago and never use but don't want to delete them. every once in a while I go through the folder and move some to an uninstalled fonts folder instead of having to scroll past them every time I'm looking for a particular one at PI.
These are some of the pretty alphabets I uploaded to my server (but aren't they a pain to post individually!) I usually just use them when making a heading in PI and upload as one jpg when finished.