This meter is interesting
in that the needle is not held in place by a hairspring but relies
on reading centrally through gravity; that is when the case is
resting in a vertical position. The top photo shows the meter
lying on its back, hence the needle is askew.
The top is made from ebonite
and is engraved with the words "INTy" and "QNTy".
The "y" in both cases are superscripts. These abbreviations
stand for "Intensity" and "Quantity", terms
which were outmoded long before Victoria's reign was over. There
is a small lever to the bottom right which has two positions,
"1/5" and "F". Dial bezel, terminals and
the carrying ring are all brass, the internal electrical fittings
are copper and brass, and the case is a rough zinc casting.
The manufacturer is "WALTERS
Although knocked around a bit,
the instrument appears to be in good order... but what was this
model used for and when was it made?
I would hazard a guess that
it was used to test detonator circuits, maybe in a coal mine?