Re: Daytime signals

Not only narrow gauge, but all railroads crewmen had to use daytime hand or flag signals or lanterns at night.
For any long distance work the rule book signals were used. I've seen the timetable held in the had to help make the signal viaable -- that is also why some laterday RR employee TTs were printed with orange covers.
I've seen a 1970-80s safety training film from an eastern railroad and it showed men using colored paddles to give the rule book signals during the day.
Seems that west of the Mississippi the crews often developed additional hand signals for daytime switching. These might be for "come to me," "go away," "stretch the train to check the coupler pin," "three (etc) more car lengths," etc.
When switching or otherwise working around curves, the signals would be relayed from man to man. To do this the man relaying the signal would be standing with his back to the engine looking toward the work being performed. Depending on where the ground men were located and the work being done the fireman may be looking out his side of the cab and calling the signals to the engineer.
Brian Norden