You can’t make this stuff up!
This costume seems to be part of an intriguing project that I likely won’t get to in my book this go-around, alas.
Avant Tut interest in all things Egyptian
Turns out that Simcox is the surname of Clara E. Simcox, aka Madame Simcox, a New York dressmaker. There isn’t a lot floating out there on the web about her but she is on my radar now.