Rolf
Blond fräulein can be misleading
I think that it is an earlier year, something around 1963 or 1964. I derive that from the turn indicators' shape that from 1965 were more square on edges. The chromed headlight rings prove that it is the De Luxe or S version. Moreover, the car in the background on the right side is a 600 Kombi (previous model with rounded edges), which points to the year 1963, the only year both models were together in production.
By the way, Trabant 601 was one of the cars with the longest production time (from 1963 to 1991) with 2,818,547 units built with basically the same body and very few refinements.