Black L&N RS-3

A friend of mine just bought a black RS-3 with L&N as the roadname. It is a Atlas unit with a Kato drive and the engine number is 118. Looking at the roster of motive power for L&N, they did have a #118 that was a RS-3. We are not familiar with this paint scheme and were just wondering if anyone had any information about this or if someone had just come up with a scheme of their own.

It is legit, the as delivered scheme.