Attached to various sleepers at High Street Kensington there are a
number of data plates. Presumably these can be found all over the
system. There are two main types (plus some odds and ends).

One sort has a large arrow and gives the name of the station and the
track. There's one at the start of the platform, and others along it
with relative distances marked.

The other sort has a large arrow as well but has various items written
on it. Here's an example:

R C C.G.
305 30
$26 $
STR NIL + 6m

where the $ is a small upwards-pointing arrow and the 26 is smaller than
the other text. It also had, in much smaller text below it:

DISTRICT EB KM45.094
MAR 94

Two others have instead:

R C C.G.
987 10 10/13
$10 $10
STR NIL 1/1000

R C C.G.
6250 NIL
$15 $
1119 10 + 5m

Can anyone explain what this means?

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