One of the exhibits owned by the Masovian Museum in Płock is "Bomboniera" designed by Fritz Klee. The artist was a German porcelain designer and founder and professor of the Staatlichen Porzellanfachschule Selb (Selb porcelain school). In addition to porcelain designs, he also dealt with exhibition posters, bookplates, theater puppets and collages. "Bomboniera" was produced in the Hutschenreuther factory, a Bavarian company operating since 1814.