"Trident" electric log
1861-1873
1861-1873
1953-1963
1770-1810
1953-1963
1861-1873
1950
1770-1820
1946
1973
1940
circa 1980
circa 1980
1861-1873
1805-1873
1965-1966
1849-1851
1876-1906
1958
1971