Guards!), guns (Men at Arms), submarines (Jingo), cinema (Moving Pictures), investigative journalism (The Truth), the postage stamp (Going Postal), modern banking (Making Money), and the steam engine (Raising Steam).
Gărzi!), puști (Men at Arms), submarine (Jingo), cinema (Imagini mișcătoare), investigații jurnalistice (The Truth), timbre poștale (Going Postal) și instituții bancare moderne (Making Money).