@Stan,
Thanks a lot for mentioning that.
Now I felt compelled to look up what "blinkers" are on steam engine, and what the difference is between German style and others, and invenstigated the biography of Richard Paul Wagner who designed the blinkers you like.
so now i go into "rivet counter" mode.
those smoke deflectors are actually " Witte" type--whereas "Wagner" type are somewhat larger.
https://en.wikipedia.org/wiki/Smoke_deflectors
sorry--i'll shut up and go home now.