It's this one, from LACMA:
|LACMA Collections Online - Robe a la Francaise, 1765, England|
I've never been a fan of the Robe a la Francaise, but something about this one has me out fabric shopping and dreaming of silver passementarie. I found this similar silk brocade at puresilks.us :
The original dress is silk faille, with a woven dot, and embroidered or woven with large silver floral sprays. I'll have to compromise on the faille (wow, expensive) and the embroidered florals - my embroidery skills, particularly with bullion, aren't up to snuff, and it would take me, like, the rest of my life anyway.
|Janet Arnold, Patterns of Fashion 1 . Very very similar, even has the comperes button front.|
I've dubbed this someday-soon project "The LACMA Sacque-ma." More to come, I promise you!