Thanks Philip,
Note the fellow standing just to the left of the smokebox, he is wearing a two-tone Kromer cap with the solid denim bill.
There was a small company in Maine that hand made these caps for years but I've heard they no longer do.
Mine was made about 15 years ago but there is no tag inside (size or maker).
As Philip noted, the "news boy" cap was also popular with rail workers in the 1920s and '30s. Some of the WW&F crew
wear them for steam train operations and period photo shoots.
Stewart