[Tigers] LAT 21 - air horns

[Allan Ballard]

I'm interested in LAT option # 21 - air horns - and seek information 
regarding which manufacturer
supplied LAT 21 horns.

So far I see reference to "french twin air horns" at the Tigers United 
site, but am not finding any more detail
anywhere.

_*"LAT 21     French twin horn set gives sharp note.    9.50    15.00"*_

http://www.tigersunited.com/resources/parts_service/pp-pricelist.asp

I am trying to keep my Tiger as original as I reasonably can but the 
factory Clear Hooter brand horns
were replaced with twin FIAMM air horns long before the car came to  me.

It would be nice to learn that the LAT 21 option used FIAMM, but I 
believe that FIAMM horns are Italian.

Does anyone have additional information on LAT option # 21, especially 
the name of the manufacturer
of the optional horns?

Rgds and thanks in advance,

Allan Ballard
Mk1a Tiger