On 24 October, at the Café del Mar in Mataró, on the occasion of the 7th Conference on Historical Railway Heritage, Mr. Richard Gibbon, a registered mechanical engineer, member of the Institute of Mechanical Engineers and former Head of Engineering at the National Railway Museum in New York, gave a master class on the technical and economic evaluation of the first locomotives of the Barcelona-Mataró Railway, which was the first line of the Iberian Peninsula Railway.
I leave you a brief review in case you want to know more!
http://www.rtve.es/alacarta/videos/altres-programes-darxiu/arxiu-tve-catalunya-tren-barcelona-mataro/616286/