Used 12V Lo Horn FoMoCo logo 1956 57 58 59 60 61-964 Ford, Mercury Ford Trucks?

Description

Up for Buy-It-Now is a nice used "Lo" horn that was obtained form an old service garage.  There is no part number on the piece other that the vintage FoMoCo logo.  From limited research on the internet, I believe this used on the following models and years:
1956-1964 Ford, Mercury and Ford Trucks
As always, please do your own research as there is no Ford part number on the piece to confirm the application listed above.  The assembly is in fair to good condiiton  It is free of any dents or cracks but does have some surface rust from many years of shelf storage.  Cast on the piece is Lo, FoMoCo.
Please feel free to E-mail me questions.  International bidders are always welcome.  Thanks for looking!