Jackson, Michigan was one of the New York Central's major locomotive maintenance facilities.  As a result, it was a popular place for locomotive manufacturers to show off their latest offerings.  In the early 1950's, ALCO-GE brought a new PA-1/PB-1 set to Jackson for a look by railroad officials and the general public.  The three photos show the passenger engines (lead by the 6375) on the track along side Liberty Street, near what is now the NS maintenance-of-way facility.

[Doug Leffler Collection]