Flag stop signal

[Anonymous]

Hi all
Does any one know what a flag stop signal looks like.
I mean the mast mounted ones operated by the passangers to stop the train not the hand held ones that where sometimes chained to the building
Further to this does any one have a drawing or dimentioned sketch of one they could let me have a copy of.
hints on making one the will work manualy and stand up to the garden welcome.
regards John

[Anonymous]

Hi
I have managed to turn up the following
It did exist, the arm was probably green or green and white and would have exhibited a green or green and white light for stop or maybe just white.
Being a US thing any one want too take an educated guess at what a single line one would have looked like.
Then give me some idea on how to make one that works including the lights
regards John.