Some of her conclusions have been challenged in the comments (the author appears to confuse 18th century Dominica with Saint-Domingue), but the images appear to be renderings in the style of Bruinas or Brunias originals of figures devariascolores (black, gradations of mixed-race, and white) in 18th century dress.
The figure in the blue dress on this button, for example…
“Race and Nation in the Age of Emancipations: A Symposium on the Atlantic World” seeks to explore the complicated relationship of race, citizenship, and national identity during the tumultuous long nineteenth century. By examining this connection in particular contexts within a broad Atlantic perspective, this symposium will contribute to a better understand of if, how, and why enslaved and free blacks throughout the Americas came to understand themselves as citizens of a particular nation (or possibly multiple nations) during the era of emancipation. Along with several panels focusing on varying aspects of this topic, the symposium will also feature a roundtable on the Atlantic World as a field, analytical concept, and pedagogical tool. Race and Nation is set to take place in Houston, Texas, on Rice University’s campus from February 21-22, 2014. The symposium is made possible thanks to generous funding from Rice University’s School of Humanities, the Department of History, the Humanities Research Center, the Program for the Study of Ethnicity, Race, and Culture, and the Graduate Student Association.
Right now I can see those who have been impacted by Hall’s work rushing to organize symposia and special issues of journals in his honor. That is all fine. He deserves to be remembered within academic spaces. But he was first and foremost an intellectual and an educator committed to socialist politics. Truly wrestling with and celebrating his life’s work means recognizing that truth. Ultimately, like the tradition of radical intellectuals of the left to which he belongs and to my mind now stands above, Hall’s legacy is one that implores us to always confront the political … and to do so with a smile and a generosity of spirit….