This is a job I had to reproduce this morning for a personal client. They paid a designer years ago for this design and she assumed the ornate M was custom. It's not, it's a font called Goudy Italien and I recognized it immediately. That got me to thinking about whether it would be allowable in a design here since it's a font. It's not something I'd use, I cringe at the style, but I was just curious.
https://imgur.com/a/HrqBO