I had a post on March 5, 2011 talking about the Rose D'or song competition in France and how I thought it might be connected to a Time magazine cover that showed a papier mache Paul holding a yellow (gold) rose. I didn't know until I was reading the KRLA Beat magazine (a fan magazine published in the mid-1960's by Los Angeles station KRLA) that there was another European competition called Rose D'or.
This one has been held in Montreux, Switzerland since the early 1960's. The KRLA Beat of March 12, 1966 (v.1, #52, p. 1) said the following: "'The Music of Lennon and McCartney' will represent the U.K. in this year's  Golden Rose of Montreux contest. The festival takes place in Montreux, Switzerland throughout the final week of April." See photo below.