In 2017, Carla and I visited northern New Mexico. A high spot was a day trip on the Cumbres and Toltec Scenic Railway, which ruins between Chama, New Mexico and Antonito, Colorado. It is a narrow-gauge (3 foot gauge) line, wholly powered by steam locomotives.
Here:
we see Carla boarding at Chama.
This:
is a peek into the locomotive cab. We see the train air brake controller (just left of the window) and the straight air brake controller for the locomotive brakes alone (to its left). The throttle handle is just above the latter.
Just below the window we see the locking quadrant for the reverser lever ("Johnson bar"), itself not just barely visible to the left of the window.
Here:
we see out trusty steed, C&TSRR 489, as we round a curve.
Best regards,
Doug