Here is Something 'Old' that is Shortwave Radio Related on eBay

TACO "Self-Selecting" Antenna System
http://cgi.ebay.com/_W0QQitemZ250216871337

There is an Interesting Diagram {4th Picture} of the Antenna
and Feed-in-Line arrangement - It appears to be :
* 60 Foot Tip-to-Tip Dipole Antenna with a Center-Piece
[ This Dipole Antenna would be roughly cut for ~7.8 MHz ]
* 80 Feet of Twisted-Pair feed-in-line; connected to a
* Dual Lightning Arrester and Grounding Block plus more
* Twisted-Pair feed-in-line connected to a
* Matching Transformer to connect to the
* Radio / Receiver's [500 Ohm HI-Z] Twin Terminals

My Guess is that the "Self-Selecting" part of the name
is more Sizzle than Steak - any Other Ideas ?

Note - "TACO" = Technical Appliance Corporaton
located in Flushing New York, NY -circa- 1930s ?