Herr Prochnow shows a Voigtländer Turbo shutter working in his website. It was developed on 1928/29: http://www.rollei-report.com/ All the best Carlos ___________________________________ A tu celular ¿no le falta algo? Usá Yahoo! Messenger y Correo Yahoo! en tu teléfono celular. Más información en http://movil.yahoo.com.ar --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list