What does this sign mean? (Solved)

[Signalling]

Hi all,

Looking at the Grain Branch line and I've found a sign I'm not familiar with. Does anyone know what it means?

Thanks in advance

 

[Dave_Cardboard]

Railsigns.uk suggests it's a "remote ground frame marker."

http://www.railsigns.uk/sect11page2/sect11page2.html

 

[Signalling]

Railsigns.uk suggests it's a "remote ground frame marker."

http://www.railsigns.uk/sect11page2/sect11page2.html

I thought it might be associated with the ground frame. I must've missed it when I was looking through the site. Thanks for your help. An old GK/RT0033 extract also included for others if this thread is used in future.

 

[CJK64]

Hi all,

Looking at the Grain Branch line and I've found a sign I'm not familiar with. Does anyone know what it means?

Thanks in advance

It's for a ground frame, which is the 3 lever panel you can see at the end of that walkway.