the oldest diesel-electric locomotive in the country (thank you George!)

The Illinois Railway Museum has restored perhaps the oldest bicentennial diesel locomotive in existence. 

Ingersoll-Rand 91 was the eighth production diesel locomotive ever built and was constructed in 1926 by a consortium of American Locomotive Company, General Electric and Ingersoll-Rand. 

The 300-horsepower diesel engine was perfect for low-speed switching and was sold to the Delaware, Lackawanna & Western

The boxy locomotive worked at the DL&W’s Brooklyn rail yard for a quarter century before being sold back to Ingersoll-Rand, which used it as a shop switcher in Phillipsburg, N.J., from 1951 until 1984. It was then donated to IRM. During its time at Ingersoll-Rand, the locomotive was painted in a special red, white and blue livery to celebrate the nation’s 200th birthday.

As the only locomotive at IRM to have been given a special patriotic livery for the bicentennial, I-R 91 was selected by Diesel Department volunteers for cosmetic restoration during the nation’s semiquincentennial year.

https://railfan.com/oldest-diesel-at-irm-gets-new-paint/