Care signore Perretti,

you could try also Deutsches Uhrenmuseum in Furtwangen, at web sites
www.fh-furtwangen.de  or  www.fh-furtwangen.de/hochschule/uhrenmuseum/
or e-mail: www@alpha.fh-furtwangen.de

I would also recommend to try the British horological society; surely
one of our members in the UK can provide you with the address.

Kind regards

Gerhard Dangel-Reese¶
Augustinermuseum Freiburg