If you’re looking for vintage frames and are in Berlin, you should sure pass by Eberswalder Strasse. At the same street you will find Blue Eyes and OptiKing!
Here you find a lot of frames from the 80’s and 90’s. Also, you will find a basket full of vintage frames to special price. Pictures I took:
Here you will get a great shopping experience! The store is designed in an American/Hollywood-style from the 50’s and the frames follows the same theme. Pictures I took in the shop: