SP 6110D
This loco was built in 1/1948 with EMD construction number 4523. It was built as a 1500 hp F3 A-unit. It was painted in the SP's standard for the time black widow colors.
Her alpha suffix was done away with when the F3 fleet was renumbered in December 1949 as she became SP 6121. She was transferred to the T&NO and renumbered as T&NO 321 on 04/11/1950.
She was rebuilt as an F9M at Houston and renumbered T&NO 635 in 09/01/1959.
She was retired on 01/13/1967 and sold to EMD on 01/31/1967.