I am modelling a "free-lance" Southern Railway cross-country line, with some GWR thrown in, supposedly south of Reading and around Basingstoke but not the LSWR main line!!! I am using Mr. George Pryer's wonderful book "A Pictorial Record of Southern Signals" as my bible. In fig.8 on page 31 there is a signalling diagram entitled "Typical S.R. Country Station Layout". It is numbered up so that points and signals are all jumbled up. Up Distant, up home, up platform starter and up advanced starter are nos. 1, 2, 3 & 4 respectively. Seems logical. But then 5 is a disc on the DOWN line controlling backing movement over a trailing crossover 6/6 into "Down Sidings West", 7 is another disc releasing a shunting train from Down Sidings West on to the Down Main while 8/8 is a trailing crossover Up to Down Mains. But then Down Distant, Down Outer Home, Down Inner Home, Down Platform Starter and Down Advanced Starter are 24, 23, 22, 21 & 20 respectively.
The philosophy here would appear to be to start numbering at the Down end of the station giving the inevitable result that the main line signal levers are at each end of the frame with points and discs jumbled up together somewhere in the middle!
To be fair to Mr. Pryer (who I am given to understand was a Southern signalman for many years) he adds a note to say that the diagram is typical and not of any particular location.
Does anybody have any Southern experience and might care to comment?