Milepost 'Braunston 20 Miles' near Blisworth Tunnel, May 1967
Grid Ref: SP 7268 5304 [GU-100-060]. The 21st milepost was also cast, apparently without anyone realising that it would be located in the middle of the tunnel so it is now in the Canal Museum at Stoke Bruerne, along with the 2nd milepost that would have been in Braunston Tunnel.