There have been a few recent sightings of CSX coal hoppers in EL markings. (I think in MOW service)
built before 1976, over 41 years old.
LV caboose still in Class-1 service:
http://www.rrpicturearchives.net/showPi ... id=4613350
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As a UP MOW car.
Built in 1946, 72 years in continuous railroad service, not yet retired.
There are some Sperry Rail cars (track inspection cars) that were built as "doodlebug" gas-electric rail cars in 1925, then sold to Sperry rail in 1940.
Been in continuous use for 92 years.