It was originally designed for suburban passenger traffic on the Metropolitan City Lines .
The Great Northern Railway ( GNR ) Class L1 ( LNER Class R1 ) was a 0 - 8 - 2T side tank steam locomotive designed by Henry Ivatt .
Great Northern Railway was originally designed for suburban passenger traffic on the Metropolitan City Lines .
The Great Northern Railway ( GNR ) Class L1 ( LNER Class R1 ) was a 0 - 8 - 2T side tank steam locomotive designed by Henry Ivatt .