CLC pegging block instrument

CLC block instruments are very rare. I've seen examples of them in old photographs of CLC signal box interiors, and I've also seen a non-pegger (in a friend's collection), but this is the first CLC pegging block I've seen up close:


Obviously it needs some attention, and is missing its commutator handle. Inspection of what remains suggests the handle was the same as, or very similar to, that on Midland Railway instruments. It has a tapped hole through the shaft, which appears to be where the 'catch' would be. The hole is vertical at line blocked.
It is different to (1) GNR instruments (hole in wrong place); (2) GCR instruments (no hole, screw holes in wood in wrong place) and (3) LNWR instruments (the latch, which slides backwards and forwards, is spring loaded on the only LNWR instrument I've seen, but that is not the case on this CLC instrument, as there is no hole through the case for the spring).
Both parts of the case are stamped '3' (so they appear to match), and the instrument is stamped CLC on the top:

Here's a picture of the inside. The CLC needle unit is - obviously - quite distinctive:

In the same auction I also obtained a description face from a CLC instrument. DOWN LINE is printed above the needle unit, and the name of the next box below the needle unit.

The name seems to have been erased at some point, but look carefully, and you can make out FAZAKERLEY SOUTH:

It turns out the description plate and case do match - albeit only on two holes - and this is the result:

(The needle has also been straightened!)


At the start of this page, I mentioned CLC non-pegging blocks. For the record, the only example I've actually seen was a 'half-height' instrument.