RISC OS S.V.R. S&T Department RISC OS
http://www.svrsig.org/ diags/S220.htm

Hinksey (South)

The dog chart and associated locking table, derived from the dog chart, show the new frame of 1941. The box was named Hinksey South, although the dog chart is marked 'Hinksey'. The box diagram has been published in 'The Heart of the Great Western by Adrian Vaughan, OPC, page 144'.