Caveney Bottlenecks

This is a fair condition example of the Caveney Bottleneck Handcuffs, which have a screw type key similar to Darby designs. 

These are listed for $200 or best offer and come with one key. 

Above, note the lock body was partly cut through near the clevis on the lower cuff as seen above. The escape attempt was either interrupted, or the key was recovered, because these are otherwise fully functional. 

Below, close up detail of the end cap with keyway and makers mark stamp.