Wellesley has a number of (approx 50) models of polyhedra in plastic. Some has stickers saying "A. Harry Wheeler" on them, and I suspect that all were from a collection created or sold by Wheeler. They had a couple of plastic models showing intersections of surfaces that had stickers saying "Unterrights Modelle" and that they were made in Germany. There were five stringed models of ruled surfaces with aluminum frames. There were two larger string models. One, in metal, looks like something I've seen in Dyck's catalog, so I have to look at that again. The other, made of wood, I think depicted a cone and a hyperboloid of one sheet. The string on that model was unravelling quite a bit. Right now the models are under the care of Joan McCarthy, an administrative assistant in the department (jmccarthy@wellesley.edu). Previously, she says they were under the care of Patrick Morton. She suggested I try contacting Wilma Slate at the Wellesley library (work with the archives) to try to find more information.
Kidwell has a photograph showing some Brill models at Wellesley College (photo pub in "Women in the American Mathematical Community" in Math Intelligencer 1987 #9 p 17, in Wellesley College Archives).
I have a copy of the Wellesley College Bulletin for the 1925-26 school year that notes (p. 144), "The [mathematics] department has a collection of 45 Brill-Schilling models of surfaces, chiefly of the second and third orders, beside [sic] several simple models, including some made by its members."