This pattern is called "Flamingo". Personally I have no idea when exactly it was designed, or for how long it was in production. One seller that at least seems to know quite a few Peill shapes by name (he might own catagolues) puts it at 1974, but I really can't say how reliable that is.
Though I sort of specialize in collecting Peill & Putzler vases nowadays, but I still haven't come across any catalogues so far that I can use. There is one book on Peill & Putzler that was published in the early 90's. It features only one chapter on their designs, and sadly most of the designs aren't dated, nor are the designers mentioned by name.
As for general knowledge, there is a chapter on them in 20th Century Factory Glass by Lesley Jackson. One of their main designers seems to have been Horst Tüsselmann, who created some very interesting deep etched vases in the early 60s, but unfortunately I can't find much information on him either. I've come across some early 60s French exhibition catalogues (with almost no pictures sadly), which invariably gives their designer as "Atelier Peill & Putzler" (including ones that are now generally attributed to Tüsselmann (again reliability is quite an issue with so little solid literature).
Peill & Putzler nowadays no longer exists as a glassworks. In the early nineties they moved production from West Germany to East Germany, and they ceased production somewhere in the mid 00's.
Astrid