Kis's surviving matrices were first acquired by Stempel, and are now held in the collection of the Druckmuseum (Museum of Printing), Darmstadt. Kis's identity as the maker of the typefaces was rediscovered in the 1950s by comparison with type from Hungarian archive sources (including his autobiography) on which his name was identified. Due to their survival, the Janson typefaces became with fine printers of the late Arts and Crafts period such as Updike, who could print books from them using hand-set type cast from surviving original matrices. In his book "Printing Types: Their History, Forms and Uses", Updike commented that "although heavy, they retain considerable vivacity of line and have great capabilities when used with taste."