Yesterday someone forgot a keychain. It has two keys for a bike lock. The keychain is made classically, light green in colour. On the keychain is a sticker made from paper which has handwriting on it. On it it says, âKathi Fahrradschloss.â Both the keys are identical, so both suitable for one lock. Kathi, do you wish to get your keys back? If not, please let us know where your bike is. And please let us know quickly because we are at Rosenthaler Platz!