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On Wed, 08 Jul 2009 23:55:05 -0600,  wrote:

>  I was not thinking of marketing and manufacturing for profit (much),
> but rather at cost just for those members who wanted one.

Add me as another potential buyer.

I made one from the core of a paper towel roll a year or two ago, the
outer tube a single sheet of paper, and the cursor is another paper sheet
formed into a tube with appropriate cutouts and scribed line riding on the
whole.  Green masking tape acts as a stop and gripping surface.

Unfortunately, it is rather flimsy; and I would like the feel of something
solid.   My version is 1-3/4 inch in diameter,11 inches long overall; and
is quite easy to handle.

I wish I had had the foresight to credit the man who sent me the
information by writing or printing his name somewhere at the end of the
scales.  Perhaps Zvi Doran, but I'm not sure.

--
Richard . . .

Using Opera 9.2.4 after the "Dog" died

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