Train Signalling Regulations
January 1923
January 1923
1748
100 BC-200 CE; 1901-1940
1930-55
1-79 CE; before 1923
1960? (original 1655-1665)
1744
1710; 1800-1899
4000-30 BCE
1930-70
1791-3
4000-30 BCE
2000-1350
2000-1350 BCE
4000-30 BCE
1950-70
1370-1350 BCE; 1931
1922; circa 1588
2000-100 BCE
4000-2001 BCE
1714-1727; 1933-1938
1744
1950-80
4000-30 BCE
4000-30 BCE
1975-1685
4000-30 BCE
4000-30 BCE
1401-1500 (original); 1960 (model)
1897; 50 CE
1860-1920; 499-400 BCE
1930-70
1927-98
1745
500-201 BCE; 1860-1920
circa 2000-1500 BCE
500 BCE-500 CE; 1801-1900
1745
4000-30 BCE
180-220 CE
1801-189
1920-1040
2000-1500 BCE
3000-1000 BCE
1871-130
3500-2001 BCE
1796-1750 BCE
2000-1301
4000-3000 BCE
1850-190