Officials of Avon marketing communications firm Mintz & Hoke walked into a surprise when they attended the 75th anniversary celebration of Worldwide Partners Inc., the world’s oldest and largest owner-operated ad agency network. Mintz & Hoke, which has been a member of the network for 40 years, was honored as a “Perfect Partner” during the group’s world meeting, May 4-8, in Zurich, Switzerland. The Connecticut agency was nominated by other agencies for ‘making a difference.’ Pictured are Chris Knopf, Mintz & Hoke’s CEO; Mary Farrell, Mintz & Hoke COO; and Al Moffatt, CEO of Worldwide Partners.