Detail of the 2nd driver on the fireman's side of the "York" oil-burning replica - a great engine to see up close, nice brass and color work!
According to Kevin Madore, the right half of the brass bearing is fixed while the left side is free to move, but is kept pressed in place by the wedge which sticks out above.
Generally speaking, shots where less than a full engine is shown. But I want to feature details, not half engines or full cabs, and definitely not full nose shots. Just shots where someone has zoomed in with purpose.