Small trackside signs, what is their purpose?

[enodenlover]

I'm thinking about ordering Green Max's no. 2179 trackside accessories kit, but I'm not sure that it's something that I need or can use since I don't know the purpose of the various small signs included in the set. Can anyone tell me how these little signs are used and whether any of them would be appropriate for a rural interurban in the 1950s? Many thanks.

 

Bob 

[nah00]

Most of them are speed and grade indicators. They seem to be a slightly older version but I doubt a rural interurban would have much need for speed indicators (they'd only have two speeds, slow and slower) or grade indicators (most of the line would be flat). 

[enodenlover]

Thanks, nah00. I might be able to use a speed indicator or two but definitely not grade indicators as my layout is as flat as an ironing board.  

 

Bob