3034 ( Northern Type 4-8-4?)
Theres a post about trains that they kept operating down in Mexico and one of them had a 3034 series number, Lots of stats but the pics don't open on my computer.
http://www.rypn.org/articles/single.php?filename=041114015159.txt
Official Diagram Statistics
Number series -- NdeM 3025 to 3056
Number of engines, 32
Built by ALCO, 3025 to 3032, and 3049 to 3056 --- Baldwin, 3033 to 3048
Placed in service, August through November, 1946
Working pressure, 250 psi
Weight, 285 tons
Factor of adhesion, 4.2
Tractive effort at 85% boiler pressure, 57,000 pounds
2800 Horsepower
25" x 30" cylinders
Walschaert valve gear
Diameter of driver centers, 66" (Overall driver diameter is 70")
Westinghouse ET-8 automatic air brake
Overall height 15' 4 7/8"
Timken Roller Bearings, integral engine bed
Tender water capacity, 15,000 gallons --- oil, 6.000 gallons
Rigid wheelbase 18' 3", Compensated 12' 2"
theres a link here that describes the class in detail and has a pic:
http://www.steamlocomotive.com/northern/
http://www.steamlocomotive.com/northern/ndem3034-1.jpg