In article .com,
wrote:

At the risk of sounding dumb, can someone clue me into the origin of
this antenna and where it's commonly used:

http://cgi.ebay.com/ws/eBayISAPI.dll...3880111 386&r
d=1&ssPageName=WDVW

Parisi Associates Inc
(781) 273-1211
105 Terrace Hall Ave
Burlington, MA 01803
(near Waltham)

Looks like some kind of turnstile antenna.

--
Telamon
Ventura, California