>It could be forged in one piece from a steel casting, but a very expensive forge die
But cheaper than a days labor per part if that was what you were replacing.
Remember, by 1893, people were building compound cylinder steam locomotives with hundreds of precice parts, wagon forgings were easy. Also, as an aside, keep in mind you can split and cut things with a drop hammer fairly easily , squashing, splitting, bending, and rough forming can be done in the same heat if you are fast...and if you are close enough, grind the rest ...