GWR Castle class 4-6-0 No 5053 Earl Cairns with the down 'Torbay Express' passes the 207 milepost between Dawlish and Teignmouth on June 5, 1949.
The mileage is from Paddington via Bristol Temple Meads.
Dawlish was 206 miles 8 chains from Padd. Via Lavington (the Berks and Hants) it was 185 m 49 c

Photo: John P. Wilson/Rail Archive Stephenson