Guarding Otago Harbour , this breech loading gun was operational from 1889 to 1919 .
Guarding Otago Harbour , this breech loading gun pressed into service again from 1941 to 1943 .
Guarding Otago Harbour , this breech loading gun was operational from 1889 to 1919 and pressed into service again from 1941 to 1943 .