A portrait of locations and industries along the middle section of the Brecon and Merthyr Railway, mainly from the 1950s and 1960s.
Beware, though, that you miss out on some material which is only in the first book.
Review: ‘Railways & Industry on the Brecon & Merthyr: Bargoed to Pontsticil. Pant to Dowlais Central’ by Hodge and Caxton