Switzerland. Canton Ticino. Blenio valley. Ludiano. A fake bird, blue flowers and a yellow mailbox with the swiss flag and the writen letters PTT. PTT (German: Post, Telefon und Telegraph, French: Postes, téléphones, télégraphes) was the Swiss Postal Telegraph and Telephone agency, formed in 1970. In the course of the international trend towards liberalisation of the telecommunications market, it was transformed into two public service companies on January 1, 1998, Swiss Post and Swisscom. Viola is a genus of flowering plants in the violet family Violaceae. It is the largest genus in the family, containing between 525 and 600 species. Ludiano is part of the municipality Serravalle. 4.04.2014 © 2014 Didier Ruef