I bought this lock off of eBay a couple of weeks ago and I have not been able to ID it yet. The 5 pin key is marked Abus so naturally I started looking there but still have not found a photo of one like it yet. The body appears to be laminated from the inside but is heavily chrome plated and polished so it looks solid from the outside. Ball locking, key retaining, it will come apart but I have not been brave enough to do it yet. The key hole has a red dot on one side and an uncolored one on the other. The lock operates very smoothly with no spring tension at all on the shackle, it has to be lifted manually when unlocked and does not automatically relock, with almost no effort required to turn the key in either direction. The only springs I can feel are on the pins. This is a very nice, big solid lock.
https://picasaweb.google.com/1071941739 ... steryLock#