C. I. segment of 10' 6" diameter tunnel, from Stockwell haulage way of the City and South London Railway, 1890 C. I. segment of 10' 6" diameter tunnel 1890
C. I. segment of 30' 0" diameter tunnel, for Clapham North Station of the City and South London Railway, 1896 C. I. segment of 30' 0" diameter tunnel 1896
