Martin Baumann wrote:100 MAY be ex MARC 66 but this is not yet confirmed
It can't be #66 as that was still in Boston last month with #51 & #59: -
http://www.rrpicturearchives.net/showPi ... id=3827610
If all the previous locos mentioned were correct then that only leaves the possibility of #52, #54, #56, #57, #58, #60, #61 or #69 as candidates.
#54, #56, #57 & #58 were photographed in April stored in Columbia, PA: -
http://www.rrpicturearchives.net/showPi ... id=3821924
#60 actually made it Boise so is that it?: -
http://www.rrpicturearchives.net/showPi ... id=3225670
If not then it can only be #52, #61 or #69.