Diesel-electric locomotive
The Baldwin DRS-6-4-1000 is a diesel-electric locomotive built by Baldwin Locomotive Works between 1948 and 1949. The DRS-6-4-1000s were powered by a turbo-charged six-cylinder diesel engine rated at , and rode on a pair of three-axle trucks in an A1A-A1A wheel arrangement. 20 of these models were built for a railroad in Algeria.
Name designation.
DRS - Diesel Road Switcher 
6 - Six axles 
4 - Four powered axles 
1000 - 1,000 horsepower