Dave,
>> Make great children's toys
No way (H&S) - have you even cut or stabbed your finger on a 0.1 chisel point ! ! !
BYW they are artificial sapphire, just in case someone has a jewellery enterprize ! ! !
It might be worth contacting someone through the Commonwealth Survey Officers Association at Cambridge, several African national mapping organisations are still using scribing.
http://www.cambridgeconference2003.co.uk/camconf/origin/
http://www.surveyreview.org/
MIke
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Mike Shand,
M.App.Sci, FBCartS,
Cartographer,
Dept. of Geography & Geomatics,
University of Glasgow,
Scotland, U.K.
Hon. Secretary: Society of Cartographers
HOME PAGE & TANZANIA Links: http://web.geog.gla.ac.uk/~mshand
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