I did call these 1965 outfits but after talking it over with a German doll friend who also collects Petra, I change my mind, there's no indications that there have been more Festival outfits available so it would make sense to believe that the Festival outfits didn't appear from the beginning, and I do believe the 1967 Festival outfits are from that year so this would have been just the year before.This is absolutely my opinion, I can't prove it, I only used my common sense.
Here are the outfits from the Festival line from what I now believe 1966, first sold at christmas 1965. I believe they all have names from famous operas, I recognize names like Aida, Salome, Tosca, Norma and Electra but I'm also an opera fan. I only miss one of the 1966 Festival outfits and that's #40 Julia, a fake fur coat and hat and the fur stole for Norma.
Her er sæt fra Festival linien af tøj som jeg nu tror er fra 1966, solgt første gang til jul 1965. Jeg tror de alle er opkaldt efter navne fra berømte operaer, jeg genkender ihvertfald nogle af dem, men jeg er også en stor operafan. Jeg mangler kun et af sættene her, det er en pelsfrakke og hat.