The thirty-two series of mathematical models made by Martin Schilling are documented: Irene Polo Blanco, Lotte van der Zalm "Mathematical models of surfaces," http://www.math.rug.nl/models/ (accessed 06/30/2015)
A discussion of Schilling and Brill and the manufacture and distribtion of their mathematical models is available from
Ronald Calinger, Vita mathematica: historical research and integration with teaching (Cambridge: Cambridge University Press, 1996), see especially pp. 202 - 204.
Schilling and Brill are also mentioned in an article "Mathematical Models and Modern Art" History of Models (accessed via the Internet Archive Wayback machine) http://web.archive.org/web/20100502155532/http://math.bu.edu/people/angelav/projects/models/art.html (accessed 06/30/2015). This article also has a useful bibliography for further research.