Thanks to David and Tim.

The specs of the telescopic mast in the Radio Works catalog look a lot
like those of the MFJ 1910.

http://www.mfjenterprises.com/produc...rodid=MFJ-1910

The '1910 doesn't seem to have gotten the greatest of reviews at
eham.com, even if we assume that the last 3 reviewers (all 3 posted on
the same date) are the same person or are basing their opinion one
single bad experience.

http://www.eham.net/reviews/detail/4165

I did happen to find the website that I was looking for, incidentally.
The Mast Company in Raleigh, NC. :

http://www.tmastco.com/

They have a range of sizes/strengths in telescoping masts:

http://www.tmastco.com/TelepolePage.htm

For those interested, the DK9SQ telescoping mast receives a good review
he

http://www.io.com/~n5fc/dk9sq.html

Available from he

http://www.bright.net/~kanga/kanga/dk9sq/mast.htm

Now perhaps RHF will like to chime in about crappie poles!

junius