The class was so successful that an additional batch of five was built in 1947, making them the last inside-cylinder 4-4-0 locomotives to be manufactured anywhere in the world.

All were still in service in 1958 when the GNR(I) was divided between the Ulster Transport Authority (UTA) and Córas Iompair Éireann (CIÉ), with each receiving five locomotives.

198 Lough Swilly was the first to be withdrawn in 1959 before its CIÉ number (198N) was applied.

205 Down is currently available as an etched-brass kit from Studio Scale Models.

It includes transfers, brass etches and cast white metal parts.