I've always been bothered by the look of the standard
and think it would be nice to have a calligraphic E that looks more like the
\mathcal 'F': .
Recently, I stumbled across an old LaTeX manual from 1999 (A Guide to LaTeX, 3rd Edition, by H. Kopka P. Daly). In the section for calligraphic letters, I was surprised to find this!
The calligraphic letters there are similar to, but not quite the same as, the current mathcal font. This old book has exactly the "E" that I have always been looking for! How can I get those characters?