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C&O Power on page 246 has an excellent picture of #407 which is the same class as the 408. It is a light Pacific with a single air pump on the pilot deck, different sand and steam domes, and a 4 axle tender. I would say the MTH catalog picture isn't very close to the prototype.
Here's a decent picture, but its hard to tell much about the tender from it.
Ken
The MTH locomotive is a nice model of a USRA Light Pacific. The C&O loco class discussed is a different locomotive entirely; the 4/6-wheel tender truck difference is the least of your "problems". Wrong loco.
However, the MTH loco is beautiful and well-made, the C&O loco will almost certainly never be offered, and substitutes happen all the time.
I have the same MTH loco (8-wheel tender) that MTH offered in an accurate maroon/black/gray GM&O scheme several years ago. Not actually a model of the GM&O loco - but I bought it, as an accurate Alton/GM&O P-16 Pacific will probably never show up. (Never has - and MTH, Lionel and K-line have all offered versions of it - every one of them incorrect.)
So - given the choice between a nice but wrong "model" and no model at all - easy - get it and enjoy it. Accuracy is preferred - but no need in letting it stand in the way of progress.