Interesting photo. Back end looks like a converted maintenance car or "speeder". Any idea of year or location?
Hawaiian Railway Society
I agree, Jeff. It looks like the sprocket on the wheel is smaller than the one on the axle, so even if the axle ratio was 4 to 1, the final drive would be less.
Since the wheels are smaller than T wheels, it makes sense to gear them up like that. That would bring the vehicle speed back up to regular T speed.
Note that it has 6 wheel breaks, break shoes on all wheels. It might also have a trans for gearing.
The one I built.
the old photo appears to be using Fairmont motorcar wheels on the rear, Bob's look like Kalamazoo wheels, which are larger in diameter.
Comparing Bob's rail car to the photo, the photo looks narrow gauge. My favorite flavor!