[Source: Nick Catford]

Early 20th C	Early 20th C	1904	1910
1910	1937	1947	July 1949
c.1952	1960	1960	1960
1960	1962	1963	1963

Gallery 1 1900 - 1964	Gallery 2 1968 - May 1985
Gallery 3 May 1985 - July 1985	Gallery 4 July 1985 - March 1986
Gallery 5 March 1986 - November 2005	Gallery 6 November 2005
Gallery 7 Grove Tunnel and junction	Gallery 8 Spa Valley Railway at Tunbridge Wells