Click here for the article telling the story of these installations. Maquette of Telford's Mark, 1986 Telfords Mark, 1987 Telford's Mark, 1987 The Trihedral Spire – Telford, 1983 The Trihedral Spire – Telford, 1983 The Trihedral Spire – under construction in 1983 « 1 2
