2 European railroad caps from my father's collection. Both in his possession for more than 20 years:
German railway station agent cap - "Deutsche Bahn" - black with red braid, stylized silver "flying wheel" medallion. Marked 57 inside. Does not appear to have been used. $25.
Swiss conductor's cap, most closely matches the "Rhatische Bahn" style - black with blue felt band, silver buckle and silver "flying wheel" medallion. Inside imprinted - "56 / Mutzenfabrik / Paul Stalder / Bern." Handwritten insert - "Blum Adolf Bahnwaiter, 56." Appears to have some very light wear. $25.