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Dear Richard,

> one "WILD T2 T-2 THEODOLITE
> Winning bid:  US $367.67

Well, it happens. I am extremally unlucky with e-bay,
If I do not bid, the things go cheaply:-)
But whenever I bid, it seems that someone is willing
to match whatever price I bid for:-(

> Did you run into the Soviet
> version of the mil, at 6000mils to the circle?

Yes, during my brief service in the anti-aircraft artillery.
All Soviet land-based
artillery used this system of angle measurement.
In the gun sights, radars, "The Device", compasses,
range-finders etc.
No degrees anywhere. It was simply called
"one angular division" or
"one thouthands" in literal translation from Russian.
The rule was that you see an object of size 1 meter
at 1 kilometer distance under the angle
"one division"=1/6000 part of the circle.
That is they assumed that pi=3 for mental calculations.
("The Device", of course performed calculations exactly).

The airforce and navy used degrees, so there were
communication problems when any interaction was required:-)

Alex.


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