4 cylinder compound 4-6-0 238 is going well along the upper reaches of the Portuguese stretch of the Douro with the mid-day Porto to Barca d’Alva which includes a TPO. This location was a gruelling 2 miles east of Ferradosa in very hot weather. Exhaust arranged at Regua- bless them! Dorothy was carrying our lunch and lots of drinks(Sumols). I had enough weight with my plate camera and supply of glass 9 x 12cm plates. August 1970 – a heatwave-even there!