NDD 1 was placed into service September 1909. It may not have run with this code for very long. In the 1910 recoding it was relettered to NC 1.
NC 2 was built and placed into service November 1912. NC 3, 4 and 5 were built and placed into service June/July 1914. NC 6 was built and placed into service 1919. This made the number group 1 to 6.
NC 1, 4 and 6 were all scrapped between 1954 and 1957.