
Altazimuth Theodolite
1755-1765
1755-1765
1950-1970
c.1850
1860-1870
1960
1940-1960
1954-10-21
1992
1957-04-02
1968-04-05
1970
1967-12
-1882
1861-1880
1861-1880
1861-1880
circa 1960
2001-02-14
1982
1896
circa 1948
1861-1880
2000-08-09
1980-1988
circa 1984