Hope you don't mind my borrowing your subject title Chessie. I just thought we could start your thread on the NS board too. Not only the same class but sequential numbers too, NS 6558 & 6559.
sequential sd60's with very low numbers..had to have been some of the first sd60's obtained sure look to be in good condition...
The SD60's were a much bigger "hit" on NS than the SD50's. I think NS only had a couple dozen 50's, but well over 100 60's. I believe the SD60's started at # 6550. Harold