??:
????????????? 1874 ?,?????:???,????,?????????????????,???????????,????????(???:??)?????????????????? Ø 7 ??,????? Ø 17.5 ??,???? 10 ????? George Betjenmann & Sons ?????????,??????????????????(?? 10)?????????????????,??????,???????????????????????
George Betjemann ????? 1851 ?,1858 ?,???? George William ? John ???,????? George Betjemann & Sons????? 1909 ?????????,?? 1939 ?? Puddefoot?Bowers & Simonett Ltd. ???