Railroad trivia puzzle: Identify an operational steam locomotive over 100 years old.
I don't have all the answers to this question. To qualify, the locomotive must be at least 100 years old (not a replica), be currently operational, or was recently operational and expected to be returned to operation in the foreseeable future. I believe there are some examples on the Strausburg Railroad but I don't know all the details of their current status.
Here is a forestry narrow gauge steam locomotive built in 1910, reported to be still operating in Romania:
https://youtu.be/BOQomG97Sog?t=18