Question: What nationality is the director of film Number 17 (1928 Film)?
Sentence (from "Number 17 (1928 film)"): Number 17 (German: Haus Nummer 17) is a 1928 German-British silent crime film directed by Géza von Bolváry and starring Guy Newall, Lien Deyers and Carl de Vogt.
Relevant evidence: Yes