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> 
> Hi,
> 
> I did put the following on scuba-l but got pretty few
> answers ... maybe tekkies are better at this.
> 
> I am looking for anyone providing information about U/W
> signs which are :
> 
> 1) not standard (e.g not like out of air)
> 2) are easy to make
> 3) are easy to understand
> 4) are practical to use.
> 
> I am also interested in "contact signs" when visibility
> is absolute zero.
> 
 
> The signs should be "natural" meaning no learning and
> universal understandable.

Xavier,

I guess that means you should already know the "natural"
signs? ;-)

The NACD offers a book of signals for cave diving that
are very handy (pun intended.. ;-)

See http://www.afn.org/~nacd/nacdpub.htm

Jeff

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