What am I?

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Jezza
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What am I?

Post by Jezza »

Spoiler
Clue:
The black bar balanced at the bearing is magnetic and was "pointing" North/South
So what am I?
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Jerry
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BobH
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Re: What am I?

Post by BobH »

A specialty compass?
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Jezza
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Re: What am I?

Post by Jezza »

That is what I thought when I first saw it and then noted the outer dial went from 0-90 and/or 90-0 on each quardrant.
Jerry
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BobH
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Re: What am I?

Post by BobH »

Jezza wrote:That is what I thought when I first saw it and then noted the outer dial went from 0-90 and/or 90-0 on each quardrant.
I noticed the 90° quadrants but thought they might be useful to some form of navigation unknown to me. Given that it has a needle pointer, I presume the device is used flat rather than upright. Might it be an angle finder for construction or mapping?
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HansV
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Re: What am I?

Post by HansV »

It is a
Spoiler
Tangent galvanometer, or rather, part of it - see here.
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Jezza
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Re: What am I?

Post by Jezza »

:chocciebar: to Hans

I was clearing out my Father's study yesterday and there was a box of stuff labelled with my name and it contained my Grandfather's old Royal Artillery Prism Compass and this galvonometer, I have no idea where it came from but Dad was very resourceful :grin:
Jerry
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StuartR
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Re: What am I?

Post by StuartR »

Wow, what a fantastic find. How on earth did Hans identify it?
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Rudi
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Re: What am I?

Post by Rudi »

Hans's grandfather must have also left one in the attic for him! :innocent:
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Leif
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Re: What am I?

Post by Leif »

StuartR wrote:Wow, what a fantastic find. How on earth did Hans identify it?
Not to diminish Hans' immense knowledge and abilities, but a Google Image search for philip harris brass is what I would have done...
(Currently showing as image numbers 13 & 22)
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HansV
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Re: What am I?

Post by HansV »

I did use Google similar to what Leif suggests.
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Leif
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Re: What am I?

Post by Leif »

Don't worry Hans, I won't tell anyone :laugh:
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Jezza
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Re: What am I?

Post by Jezza »

So did I :evilgrin:
Jerry
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BobH
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Re: What am I?

Post by BobH »

Great find, Jezza!
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