The large boilered "Atlantics" of the old Great Northern Railway, designed by Mr H A Ivatt, were among the most successful engines of their day. They worked all the principal express trains on the GNR and its successor, the LNER, until the advent of the Gresley "Pacifics". Even after that they continued to work with lighter trains. This book covers in detail the building of a 3½" gauge model of this famous prototype. The author, LBSC, is still regarded as the greatest model locomotive designer of his day and this book makes enjoyable and informative reading even if you are not intending to build this particular model since many of the methods shown are applicable to other models.