I sent Dad a Father's Day card during the week and, as he is a steam enthusiast, I was pleased to have found a card with a train on it (sorry - engine!).
This was his emailed response this morning:
Thank you for your card which came in the week but was left until this morning. It is a 4-6-4 loco as far as can be seen through the steam with a Westinghouse air compessor just in front of the cab with the 50 feet of air cooling pipe in front again. The safety valves are lifting and the cylinder cocks are open so it is ready to move.
I don't know the driver's name.
You see, it's important to get the details right!