Horn Identification. Iconic?

[philipsumner]

From the pictures on this site I believe this to be from an early iconic system. Is this correct? It measures 16" across and 12" deep. Any details would be appreciated. Thanks very much.

http://i1096.photobucket.com/albums/g335/psbsp/06ad1d9d.jpg

http://i1096.photobucket.com/albums/g335/psbsp/5488a4b3.jpg

http://i1096.photobucket.com/albums/g335/psbsp/f22da289.jpg

http://i1096.photobucket.com/albums/g335/psbsp/5c11782c.jpg