This is the first time on this account it is posted as a 1st page drawing.
It is a C.F.B. Railroad train in Angola, Africa back in the year 1915. This was when the country was still a colony of Portugal. Like nearly all steam locomotives in Angola back in the day, this locomotive is a wood burner, which means it has a larger fire box because wood doesn't burn as hot as coal. And the fire box is not design to withstand the higher temperatures produced by burning coal, being it is meant to burn wood.
This train is not a narrow gauge, by the way. It is a standard gauge train, which larger than trains built for narrow gauge lines.