How does Frank obtain the money to start his own business in the novel, The Man in the High Castle?

After quitting his job, Frank and his partner come up with a scheme to force their boss to finance their new venture. Frank goes to the American Artistic Handcrafts pretending to be a Japanese Admiral's gentleman and claims that one of the shop's "authentic" guns is a fake. Robert Childan contacts his supplier, who finds out they are fake, so he then contacts Frank's boss. The boss buys Frank's silence with a check for two thousand dollars.